American Association of Petroleum Geologists & Branson, C. C. (1962). Pennsylvanian system in the United States: A symposium. [publisher not identified].
Chicago Style (17th ed.) CitationAmerican Association of Petroleum Geologists and Carl C. Branson. Pennsylvanian System in the United States: A Symposium. Tulsa, Okla.: [publisher not identified], 1962.
MLA (9th ed.) CitationAmerican Association of Petroleum Geologists and Carl C. Branson. Pennsylvanian System in the United States: A Symposium. [publisher not identified], 1962.
Warning: These citations may not always be 100% accurate.