Cita APA (7a ed.)
Samuelson, P. A. (1970). Economics (8th Ed.). McGraw-Hill Book Company.
Cita Chicago Style (17a ed.)
Samuelson, Paul A. Economics. 8th Ed. New York: McGraw-Hill Book Company, 1970.
Cita MLA (9a ed.)
Samuelson, Paul A. Economics. 8th Ed. McGraw-Hill Book Company, 1970.
Precaución: Estas citas no son 100% exactas.