Willrich, M. (1975). Energy and World politics,. Free Pr.
Chicagoスタイル(17版)引用形式Willrich, Mason. Energy and World Politics,. New York: Free Pr, 1975.
MLA(9版)引用形式Willrich, Mason. Energy and World Politics,. Free Pr, 1975.
警告: この引用は必ずしも正確ではありません.
Willrich, M. (1975). Energy and World politics,. Free Pr.
Chicagoスタイル(17版)引用形式Willrich, Mason. Energy and World Politics,. New York: Free Pr, 1975.
MLA(9版)引用形式Willrich, Mason. Energy and World Politics,. Free Pr, 1975.