APA (7th ed.) Citation

Kunitz, S. J., & Colby, V. (1955). Twentieth century authors. First supplement . A biographical dictionary of modern literature. The H. W. Wilson.

Chicago Style (17th ed.) Citation

Kunitz, Stanley J., and Vineta Colby. Twentieth Century Authors. First Supplement . A Biographical Dictionary of Modern Literature. Nueva York: The H. W. Wilson, 1955.

MLA (9th ed.) Citation

Kunitz, Stanley J., and Vineta Colby. Twentieth Century Authors. First Supplement . A Biographical Dictionary of Modern Literature. The H. W. Wilson, 1955.