Cita APA (7a ed.)
(1972). THE WORLD BOOK ENCYCLOPEDIA. FIELD ENTERPRISE EDUCATIONAL CORPORATION.
Cita estilo Chicago (17a ed.)
THE WORLD BOOK ENCYCLOPEDIA. CHICAGO: FIELD ENTERPRISE EDUCATIONAL CORPORATION, 1972.
Cita MLA (9a ed.)
THE WORLD BOOK ENCYCLOPEDIA. FIELD ENTERPRISE EDUCATIONAL CORPORATION, 1972.
Precaución: Estas citas no son 100% exactas.