APA aipamena

Zeleny, R. O. (1974). The world book encyclopedia. Chicago: Field Enterprises Educational Corporation.

Chicago Style aipamena

Zeleny, Robert O. The World Book Encyclopedia. Chicago: Field Enterprises Educational Corporation, 1974.

MLA aipamena

Zeleny, Robert O. The World Book Encyclopedia. Chicago: Field Enterprises Educational Corporation, 1974.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.