APA aipamena

BERMAN, L. (1980). Exploring the cosmos. Little Brown and Company.

Chicago Style aipamena

BERMAN, Louis. Exploring the Cosmos. Little Brown and Company, 1980.

MLA aipamena

BERMAN, Louis. Exploring the Cosmos. Little Brown and Company, 1980.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.