MLA

Padover, Saul Kussiel. Karl Marx : an Intimate Biography. New York: McGraw-Hill, 1978.

APA

Padover, S. Kussiel. (1978). Karl Marx : an intimate biography. New York: McGraw-Hill.

Chicago

Padover, Saul Kussiel, Karl Marx : an Intimate Biography. New York: McGraw-Hill,, 1978.