APA (7th ed.) Citation

Geyl, P., & Sorokin, P. A. (1968). The Pattern of the past: Can we determine itn. Greenwood Press.

Chicago Style (17th ed.) Citation

Geyl, Pieter, and Pitirim Aleksandrovich Sorokin. The Pattern of the Past: Can We Determine Itn. New York: Greenwood Press, 1968.

MLA (9th ed.) Citation

Geyl, Pieter, and Pitirim Aleksandrovich Sorokin. The Pattern of the Past: Can We Determine Itn. Greenwood Press, 1968.