Childs, O. E., & Beebe, B. W. (1963). Backbone of the Americas: Tectonic history from pole to pole;a symposium. American Association of Petroleum Geologists.
Chicago Style (17th ed.) CitationChilds, Orlo E., and B. Warren Beebe. Backbone of the Americas: Tectonic History from Pole to Pole;a Symposium. Tulsa, Okla: American Association of Petroleum Geologists, 1963.
MLA (9th ed.) CitationChilds, Orlo E., and B. Warren Beebe. Backbone of the Americas: Tectonic History from Pole to Pole;a Symposium. American Association of Petroleum Geologists, 1963.
Warning: These citations may not always be 100% accurate.