APA (7th ed.) Citation

Leff, G. (1969). History and social theory / by G. Leff. Merlin.

Chicago Style (17th ed.) Citation

Leff, G. History and Social Theory / by G. Leff. Merlin, 1969.

MLA (9th ed.) Citation

Leff, G. History and Social Theory / by G. Leff. Merlin, 1969.

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