Cita APA (7th ed.)

World Book, I. (1996). The world book encyclopedia: Q-r. World Book.

Cita Chicago (17th ed.)

World Book, Inc. The World Book Encyclopedia: Q-r. Chicago: World Book, 1996.

Cita MLA (9th ed.)

World Book, Inc. The World Book Encyclopedia: Q-r. World Book, 1996.