Lua APA (7ú heag.)

Spiegel, H. W. (1983). The growth of economic thought (Rev. and expanded ed.). Duke University Press.

Lua i Stíl Chicago (17ú heag.)

Spiegel, Henry William. The Growth of Economic Thought. Rev. and expanded ed. Durham, North Carolina: Duke University Press, 1983.

Lua MLA (9ú heag.)

Spiegel, Henry William. The Growth of Economic Thought. Rev. and expanded ed. Duke University Press, 1983.

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