(1973). The new caxton enciclopédia 1973 yearbook. Caxton Publishing Company.
Cita Chicago Style (17a ed.)The New Caxton Enciclopédia 1973 Yearbook. Caxton Publishing Company, 1973.
Cita MLA (8a ed.)The New Caxton Enciclopédia 1973 Yearbook. Caxton Publishing Company, 1973.
Precaución: Estas citas no son 100% exactas.