APA aipamena

(1974). Science Year: The world book science annual 1975. Chicago, Illinois: Field Enterprises Educational Corporation.

Chicago Style aipamena

Science Year: The World Book Science Annual 1975. Chicago, Illinois: Field Enterprises Educational Corporation, 1974.

MLA aipamena

Science Year: The World Book Science Annual 1975. Chicago, Illinois: Field Enterprises Educational Corporation, 1974.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.