APA aipamena

Krauskopf, K. B. (2008). Physical universe. New York: McGraw-Hill Companies.

Chicago Style aipamena

Krauskopf, Konrad B. Physical Universe. New York: McGraw-Hill Companies, 2008.

MLA aipamena

Krauskopf, Konrad B. Physical Universe. New York: McGraw-Hill Companies, 2008.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.