APA aipamena

David J. Littlefield. (1968). Twentieth century interpretations of The frogs: A collection of critical essays. prentice hall.

Chicago Style aipamena

David J. Littlefield. Twentieth Century Interpretations of The Frogs: A Collection of Critical Essays. New Jersey: prentice hall, 1968.

MLA aipamena

David J. Littlefield. Twentieth Century Interpretations of The Frogs: A Collection of Critical Essays. prentice hall, 1968.