Não informado. (1988). Capitalism, Nature, Socialism. University of California.
Chicagoスタイル(17版)引用形式Não informado. Capitalism, Nature, Socialism. Santa Cruz, Calif: University of California, 1988.
MLA(8版)引用形式Não informado. Capitalism, Nature, Socialism. University of California, 1988.
警告: この引用は必ずしも正確ではありません.