Grolier Incorporated. (1998). The Encyclopedia Americana (International ed.). Grolier Incorporated.
Chicagoスタイル(17版)引用形式Grolier Incorporated. The Encyclopedia Americana. International ed. Danbury, Conn: Grolier Incorporated, 1998.
MLA(9版)引用形式Grolier Incorporated. The Encyclopedia Americana. International ed. Grolier Incorporated, 1998.
警告: この引用は必ずしも正確ではありません.