APA aipamena

GROLIER ENCYCLOPEDIA .. Grolier encyclopedia of knowledge 6. Grolier.

Chicago Style aipamena

GROLIER ENCYCLOPEDIA .. Grolier Encyclopedia of Knowledge 6. Danbury: Grolier.

MLA aipamena

GROLIER ENCYCLOPEDIA .. Grolier Encyclopedia of Knowledge 6. Grolier.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.