Dyfyniad APA

Robinson, M. A. (1967). An Introduction to economic reasoning. New York: Anchor books.

Dyfyniad Arddull Chicago

Robinson, Marshall A. An Introduction to Economic Reasoning. New York: Anchor books, 1967.

Dyfyniad MLA

Robinson, Marshall A. An Introduction to Economic Reasoning. New York: Anchor books, 1967.

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