Gaya APA

Sumac, S, T. (1996). The Encyclopedia Americana International Edition Volum 25 (Cet. 16). U.S.A: Grolier Incorporated.

Gaya MLA

Sumac, Skin, To. "The Encyclopedia Americana International Edition Volum 25". Cet. 16 U.S.A: Grolier Incorporated, 1996. Text.