APA (7th ed.) Citation

Lehman, H. (1979). Introduction to the philosophy of mathematics. Blackwell.

Chicago Style (17th ed.) Citation

Lehman, Hugh. Introduction to the Philosophy of Mathematics. Oxford: Blackwell, 1979.

MLA (9th ed.) Citation

Lehman, Hugh. Introduction to the Philosophy of Mathematics. Blackwell, 1979.

Warning: These citations may not always be 100% accurate.