Gaya APA

Incorporated, G. (1984). The Encyclopedia Americana: International Edition Volume 4 Birmingham To Burlingto (Ed.1). Danbury: Grolier Incorporated.

Gaya MLA

Incorporated, Grolier. "The Encyclopedia Americana: International Edition Volume 4 Birmingham To Burlingto". Ed.1 Danbury: Grolier Incorporated, 1984. Buku UN.