Lua APA (7ú heag.)

Turner, J. R. (1919). Introduction to economics. Scribner's.

Lua i Stíl Chicago (17ú heag.)

Turner, John Roscoe. Introduction to Economics. New York: Scribner's, 1919.

Lua MLA (9ú heag.)

Turner, John Roscoe. Introduction to Economics. Scribner's, 1919.

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