APA (7th ed.) Citation

Cohn, B., & Comrie, L. J. 1. . . .. (1939). Tables of addition and subtraction logarithms with six decimals (2d ed.). Scientific Computing Services.

Chicago Style (17th ed.) Citation

Cohn, Berthold, and Leslie John 1893- Comrie. Tables of Addition and Subtraction Logarithms with Six Decimals. 2d ed. London: Scientific Computing Services, 1939.

MLA (9th ed.) Citation

Cohn, Berthold, and Leslie John 1893- Comrie. Tables of Addition and Subtraction Logarithms with Six Decimals. 2d ed. Scientific Computing Services, 1939.