Cita APA

THE WORLD BOOK ENCYCLOPEDIA. (1989). The world book encyclopedia: U - V. World Book.

Citación estilo Chicago

THE WORLD BOOK ENCYCLOPEDIA. The World Book Encyclopedia: U - V. Chicago: World Book, 1989.

Cita MLA

THE WORLD BOOK ENCYCLOPEDIA. The World Book Encyclopedia: U - V. World Book, 1989.

Warning: These citations may not always be 100% accurate.