APA aipamena

Peterson, W. L. (1988). Principles of economics: Macro (6 edition.). Universal Book Stall.

Chicago Style aipamena

Peterson, Willis L. Principles of Economics: Macro. 6 edition. New Delhi: Universal Book Stall, 1988.

MLA aipamena

Peterson, Willis L. Principles of Economics: Macro. 6 edition. Universal Book Stall, 1988.

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