APA aipamena

Eiseley, L. (1969). The unexpected universe. New York: Harcourt, Brace & World.

Chicago Style aipamena

Eiseley, Loren. The Unexpected Universe. New York: Harcourt, Brace & World, 1969.

MLA aipamena

Eiseley, Loren. The Unexpected Universe. New York: Harcourt, Brace & World, 1969.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.