Tugwell, F. (1975). The politics of oil in Venezuela. Stanford University.
Chicagoスタイル(17版)引用形式Tugwell, Franklin. The Politics of Oil in Venezuela. Stanford: Stanford University, 1975.
MLA(9版)引用形式Tugwell, Franklin. The Politics of Oil in Venezuela. Stanford University, 1975.
警告: この引用は必ずしも正確ではありません.