Gaya APA

Kunitz, S, J., Colby, V. (1955). Twentieth century authors : a biographical dictionary of modern literature . New York: The H. W. Wilson Company.

Gaya MLA

Kunitz, Stanley, J., Colby, Vineta. "Twentieth century authors : a biographical dictionary of modern literature". New York: The H. W. Wilson Company, 1955. Text.