APA (7th ed.) Zitazioa

EISELEY, L. (1971). The firmament of time. Atheneum.

Chicago Style (17th ed.) Zitazioa

EISELEY, L. The Firmament of Time. New York: Atheneum, 1971.

MLA (9th ed.) Zitazioa

EISELEY, L. The Firmament of Time. Atheneum, 1971.