APA (7th ed.) Citation

Hilbert, D., & Ackermann, W. (1950). Principles of mathematical logic. Chelsea Pub. Co..

Chicago Style (17th ed.) Citation

Hilbert, David, and W. Ackermann. Principles of Mathematical Logic. New York: Chelsea Pub. Co., 1950.

MLA (9th ed.) Citation

Hilbert, David, and W. Ackermann. Principles of Mathematical Logic. Chelsea Pub. Co., 1950.