M 16 - M 23 Mathematics
| M16 | General works | |
| M17 | Cambridge tracts in mathematics. University Mathematical texts | |
| M17.1 | RKP Library of mathematics | |
| M18 | Algebra. Topology. Theory of number | |
| M18.1 | Metamathematics, mathematical logic etc | |
| M19 | Geometry. Trigonometry | |
| M21 | Calculus | |
| M22 | Applied mathematics | |
| M23 | Tables. Statistics etc |