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Library of Congress Subject Areas (10749)
- A General Works (26)
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  - TC Hydraulic engineering. Ocean engineering (65)
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  - TE Highway engineering. Roads and pavements (74)
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  - TH Building construction (380)
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  - TJ Mechanical engineering and machinery (747)
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  - TK Electrical engineering. Electronics Nuclear engineering (1471)
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  - TL Motor vehicles. Aeronautics. Astronautics (141)
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  - TN Mining engineering. Metallurgy (40)
  - TP Chemical technology (416)
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