Samuelson, P. A. (1967). Economics: An introductory analysis (7th ed.). McGraw-Hill.
Chicago Style (17th ed.) CitationSamuelson, Paul Anthony. Economics: An Introductory Analysis. 7th ed. New York, N.Y.: McGraw-Hill, 1967.
MLA (9th ed.) CitationSamuelson, Paul Anthony. Economics: An Introductory Analysis. 7th ed. McGraw-Hill, 1967.