APA (7th ed.) Citation

Sykes, C. (1948). Four studies in loyalty. W. Sloane Associates.

Chicago Style (17th ed.) Citation

Sykes, Christopher. Four Studies in Loyalty. New York: W. Sloane Associates, 1948.

MLA (9th ed.) Citation

Sykes, Christopher. Four Studies in Loyalty. W. Sloane Associates, 1948.