APA aipamena

Engle, M. L. (1978). A swiftly tilting planet. New York: Square Fish.

Chicago Style aipamena

Engle, Madeleine L. A Swiftly Tilting Planet. New York: Square Fish, 1978.

MLA aipamena

Engle, Madeleine L. A Swiftly Tilting Planet. New York: Square Fish, 1978.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.