Gregory, P. R. (1999). Comparative economic systems. Houghton Mifflin.
Chicagoスタイル(17版)引用形式Gregory, Paul R. Comparative Economic Systems. Houghton Mifflin, 1999.
MLA(8版)引用形式Gregory, Paul R. Comparative Economic Systems. Houghton Mifflin, 1999.
警告: この引用は必ずしも正確ではありません.