Gaya APA

Nault, William H., Groman, Jeff. (1992). The World Book Encyclopedia, Volume 16: Q - R . London: World Book, Inc..

Gaya Chicago

Nault, William H., Groman, Jeff. The World Book Encyclopedia, Volume 16: Q - R. London: World Book, Inc., 1992. Text.

Gaya MLA

Nault, William H., Groman, Jeff. The World Book Encyclopedia, Volume 16: Q - R. London: World Book, Inc., 1992. Text.

Gaya Turabian

Nault, William H., Groman, Jeff. The World Book Encyclopedia, Volume 16: Q - R. London: World Book, Inc., 1992. Print.