Gaya APA

Cole, Barbara Letta.. (1993). Encyclopedia Americana 9 : Diedit oleh Barbara Letta Cole . Danbury: Grolier Incorporated.

Gaya Chicago

Cole, Barbara Letta.. Encyclopedia Americana 9 : Diedit oleh Barbara Letta Cole. Danbury: Grolier Incorporated, 1993. Buku.

Gaya MLA

Cole, Barbara Letta.. Encyclopedia Americana 9 : Diedit oleh Barbara Letta Cole. Danbury: Grolier Incorporated, 1993. Buku.

Gaya Turabian

Cole, Barbara Letta.. Encyclopedia Americana 9 : Diedit oleh Barbara Letta Cole. Danbury: Grolier Incorporated, 1993. Buku.