Samuelson, P. A. (1961). Economics: An Introductory Analysis. New York: McGraw-Hill Book Co..
Chicago Style aipamenaSamuelson, Paul A. Economics: An Introductory Analysis. New York: McGraw-Hill Book Co., 1961.
MLA aipamenaSamuelson, Paul A. Economics: An Introductory Analysis. New York: McGraw-Hill Book Co., 1961.
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