APA

Sorokin P. A., . (1941). The Crisis of Our Age. New York: Dutton.

Chicago

Sorokin Pitirim A, . 1941. The Crisis of Our Age. New York: Dutton.

Harvard

Sorokin P. A., . (1941). The Crisis of Our Age. New York: Dutton.

MLA

Sorokin Pitirim A, . The Crisis of Our Age. New York: Dutton. 1941.