 | 51 Mathematics |
 | 52 Space Research |
 | 53 Applied Physics |
 | 54 Chemistry |
 | 57 Biological Sciences |
 | 58 Botany |
 | 60 Biotechnology |
 | 61 Medical Sciences |
 | 62 Engineering |
 | 66 Chemical Technology |
 | 77 Photography |
 | 355 Defence Sciences |
 | 504 Environmental Sciences |
 | 531 Mechanics |
 | 532 Fluid Mechanics |
 | 535 Optics |
 | 536 Thermodynamics |
 | 537 Electromagnetism |
 | 543 Analytical Chemistry |
 | 544 Physical Chemistry |
 | 546 Inorganic Chemistry |
 | 547 Organic Chemistry |
 | 548 Crystallography |
 | 551 Geology |
 | 556 Hydrology |
 | 577 Biochemistry |
 | 579 MicroBiology |
 | 612 Physiology |
 | 615 Pharmacology |
 | 621 Mechanical Engineering |
 | 622 Civil Engineering |
 | 623 Military Science and Engineering |
 | 624 Civil Engineering |
 | 629 Transport Vehicle Engineering |
 | 631 Agriculture |
 | 641 Food Sciences |
 | 658 Management Sciences |
 | 665 Resins |
 | 669 Metallurgy |
 | 676 Paper Industry |
 | 678 Composite Materials |
 | 687 Textiles and Clothing |
 | 929 Biography |
 | 159.9 Psychology |
 | 358.4 Avionics |
 | 519.2 Statistics |
 | 519.8 Operations Research |
 | 528.8 Remote Sensing |
 | 531.3 Dynamics |
 | 532.5 Hydrodynamics |
 | 533.6 Aerodynamics |
 | 533.9 Plasma |
 | 534.8 Acoustics |
 | 536.2 Heat Transfer |
 | 537.6 Magnetism |
 | 538.9 Solid State Technology |
 | 539.1 Nuclear Physics |
 | 544.6 Electrochemistry |
 | 546.3 Metals |
 | 548.2 Crystal Growth |
 | 550.3 Geophysics |
 | 551.5 Meteorology |
 | 615.9 Toxicology |
 | 616.8 Neurology |
 | 620.1 Material Science and Technology |
 | 621.1 Engines |
 | 621.3 Electrical Engineering |
 | 623.4 Armaments and Ballistics |
 | 623.5 Armaments and Ballistics |
 | 623.8 Naval Science |
 | 629.5 Marine Sciences |
 | 629.7 Aeronautics |
 | 631.4 Soil Science |
 | 632.9 Pest Control |
 | 662.1 Pyrotechnics |
 | 662.3 Propellants |
 | 667.6 Paints |
 | 681.2 Instrumentation |
 | 681.3 Computer Science |
 | 681.5 Control Systems |
 | 514.84 Quantum Mechanics |
 | 531.55 Projectiles |
 | 535.44 Diffraction Methods |
 | 535.62 Spectrum Analysis |
 | 537.84 Magnetogasdynamic |
 | 537.84 Magnetohydrodynamic |
 | 539.42 Fracture Mechanics |
 | 551.32 Glaciology |
 | 551.46 Oceanography |
 | 551.51 Atmospheric Physics |
 | 551.58 Climatology |
 | 57.089 Biomedical Sciences |
 | 621.38 Electronics |
 | 621.39 Telecommunication |
 | 623.41 Weapon Systems |
 | 623.45 Ammunition |
 | 623.61 Military Communications |
 | 623.64 Terrain Studies |
 | 629.76 Rockets and Missiles |
 | 532.542 Fluid Dynamics |
 | 535.374 Radiation Hazards |
 | 537-962 Microwaves |
 | 551.466 Sea Waves |
 | 614.844 Fire Detection Systems |
 | 62.008.1 Technology Policy |
 | 620.261 Explosives |
 | 621.039 Nuclear Sciences |
 | 621.224 Turbines |
 | 621.438 Aircraft Gas Turbine Engines |
 | 623.459 Chemical Weapons |
 | 623.459 War Gases |
 | 629.331 Automobile Engineering |
 | 629.762 Missiles |
 | 662.61.9 Fuels |
 | 669.018 Alloys |
 | 681.324 Computer Networks |
 | 681.586 Sensors |
 | 621.039.8 Radioisotopes |
 | 621.131.5 Soil Mechanics |
 | 621.3.029 Electromagnetic Waves |
 | 621.396.9 Radars |
 | 623.4.021 Targets |
 | 624.131.5 Soil Dynamics |
 | 681.3:355 Computer Applications in Defence |
 | 681.5.017 Simulation |
 | 681.783.2 Laser Range Finder |
 | 551.521.37 Solar Energy |
 | 551.578.48 Avalanche |
 | 621.386.64 Radiography |
 | 681.315.61 Dielectric Materials |
 | 621.315.592 Semiconductors |
 | 621.375.826 Laser Science |
 | 623.454.833 Shock Waves |
 | 655.3.066.25 Packaging |
 | 621.78.019.84 Corrosion |