International Symposium on Arctic Geology San Francisco, Calif, & Pitcher, M. G. (1973). Arctic geology: Proceedings of the Second International Symposium on Arctic Geology held February 1-4, 1971 at San Francisco, California. edited by Max C. Pitcher. American Association of Petroleum Geologists.
Chicago-referens (17:e uppl.)International Symposium on Arctic Geology San Francisco, Calif, och Max Grow Pitcher. Arctic Geology: Proceedings of the Second International Symposium on Arctic Geology Held February 1-4, 1971 at San Francisco, California. Edited by Max C. Pitcher. Tulsa, Okla: American Association of Petroleum Geologists, 1973.
MLA-referens (9:e uppl.)International Symposium on Arctic Geology San Francisco, Calif, och Max Grow Pitcher. Arctic Geology: Proceedings of the Second International Symposium on Arctic Geology Held February 1-4, 1971 at San Francisco, California. Edited by Max C. Pitcher. American Association of Petroleum Geologists, 1973.