Cita APA

Samuelson, P. A. 1., & Samuelson, P. A. 1. (1970). Economics (8. edition.). New York, New York: McGraw-Hill.

Citación estilo Chicago

Samuelson, Paul Anthony 1915-2009, y Paul Anthony 1915-2009 Samuelson. Economics. 8. edition. New York, New York: McGraw-Hill, 1970.

Cita MLA

Samuelson, Paul Anthony 1915-2009, y Paul Anthony 1915-2009 Samuelson. Economics. 8. edition. New York, New York: McGraw-Hill, 1970.