APA (7th ed.) Citation

Gardiner, P. (1959). Theories of history. The Free Press [etc.].

Chicago Style (17th ed.) Citation

Gardiner, Patrick. Theories of History. Glencoe (Illinois) [etc.]: The Free Press [etc.], 1959.

MLA (9th ed.) Citation

Gardiner, Patrick. Theories of History. The Free Press [etc.], 1959.

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