(1957). Collier's encyclopedia: 1973=1972(1973). Collier's encyclopedia.
Chicago Style (17th ed.) Citation"Collier's Encyclopedia: 1973=1972(1973)." Collier's Encyclopedia 1957.
MLA (8th ed.) Citation"Collier's Encyclopedia: 1973=1972(1973)." Collier's Encyclopedia, 1957.
Warning: These citations may not always be 100% accurate.
