(1957). Collier's encyclopedia: 1970=1969(1970). Collier's encyclopedia.
Chicago Style (17th ed.) Citation"Collier's Encyclopedia: 1970=1969(1970)." Collier's Encyclopedia 1957.
MLA (8th ed.) Citation"Collier's Encyclopedia: 1970=1969(1970)." Collier's Encyclopedia, 1957.
Warning: These citations may not always be 100% accurate.
