Não informado. (1987). Nature, Society and Thought. Marxist Educational Press.
Chicagoスタイル(17版)引用形式Não informado. Nature, Society and Thought. Minneapolis, Minn: Marxist Educational Press, 1987.
MLA(8版)引用形式Não informado. Nature, Society and Thought. Marxist Educational Press, 1987.
警告: この引用は必ずしも正確ではありません.