APA (7th ed.) Citation

Geyl, P., Toynbee, A., & Sorokin, P. (1968). The pattern of the past: Can we determine it? (Repr. d. Ausg. Boston 1949.). Greenwood Pr.

Chicago Style (17th ed.) Citation

Geyl, Pieter, Arnold Toynbee, and Pitirim Sorokin. The Pattern of the Past: Can We Determine It? Repr. d. Ausg. Boston 1949. New York: Greenwood Pr, 1968.

MLA (9th ed.) Citation

Geyl, Pieter, et al. The Pattern of the Past: Can We Determine It? Repr. d. Ausg. Boston 1949. Greenwood Pr, 1968.