Gaya APA

Incorporated, G. (1984). The Encyclopedia Americana International Edition Volume 6: Cathetrals To Civil War (Ed. 1). Danbury: Grolier Incorporated.

Gaya MLA

Incorporated, Grolier. "The Encyclopedia Americana International Edition Volume 6: Cathetrals To Civil War". Ed. 1 Danbury: Grolier Incorporated, 1984. Buku UN.