APA (7th ed.) Citation

Sorokin, P. A. (1928). Contemporary sociological theories. Harper.

Chicago Style (17th ed.) Citation

Sorokin, Pitirim Aleksandrovich. Contemporary Sociological Theories. New York: Harper, 1928.

MLA (9th ed.) Citation

Sorokin, Pitirim Aleksandrovich. Contemporary Sociological Theories. Harper, 1928.

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