Cita APA (7th ed.)

WORLD BOOK, I. (1988). WORLD BOOK ENCYCLOPEDIA'T'. WORLD BOOK INC.

Cita Chicago (17th ed.)

WORLD BOOK, INC. WORLD BOOK ENCYCLOPEDIA'T'. CHICAGO: WORLD BOOK INC, 1988.

Cita MLA (9th ed.)

WORLD BOOK, INC. WORLD BOOK ENCYCLOPEDIA'T'. WORLD BOOK INC, 1988.