Não informado. (1917). Bulletin. American Association of Petroleum Geologists.
Chicagoスタイル(17版)引用形式Não informado. Bulletin. Chicago, Ill: American Association of Petroleum Geologists, 1917.
MLA(8版)引用形式Não informado. Bulletin. American Association of Petroleum Geologists, 1917.
警告: この引用は必ずしも正確ではありません.