Cita APA

Samuelson, P. A. (1967). Economics: An introductory analysis (7. ed.). New York: McGraw-Hill.

Citación estilo Chicago

Samuelson, Paul Anthony. Economics: An Introductory Analysis. 7. ed. New York: McGraw-Hill, 1967.

Cita MLA

Samuelson, Paul Anthony. Economics: An Introductory Analysis. 7. ed. New York: McGraw-Hill, 1967.