APA (7th ed.) Citation

Gardiner, M. (1952). The Principles of general biology. Macmillan.

Chicago Style (17th ed.) Citation

Gardiner, M.S. The Principles of General Biology. New York: Macmillan, 1952.

MLA (9th ed.) Citation

Gardiner, M.S. The Principles of General Biology. Macmillan, 1952.