Computing Review Subject Classification System (1964, obsolete)

3.1 Natural Sciences

  • 3.10 General
  • 3.11 Astronomy; Space
  • 3.12 Biology
  • 3.13 Chemistry
  • 3.14 Earth Sciences
  • 3.15 Mathematics; Number Theory
  • 3.16 Meteorology
  • 3.17 Physics; Nuclear Sciences
  • 3.19 Miscellaneous