APA-Zitierstil (7. Ausg.)

Foster, D. W. (1971). The early Spanish ballad. Twayne Publishers.

Chicago-Zitierstil (17. Ausg.)

Foster, David William. The Early Spanish Ballad. New York: Twayne Publishers, 1971.

MLA-Zitierstil (8. Ausg.)

Foster, David William. The Early Spanish Ballad. Twayne Publishers, 1971.