Cita APA

Samuelson, P. (1981). Economics from the heart. San Diego: Harcourt Brace Jovanovich, Publishers.

Chicago Style Citation

Samuelson, Paul. Economics From the Heart. San Diego: Harcourt Brace Jovanovich, Publishers, 1981.

Cita MLA

Samuelson, Paul. Economics From the Heart. San Diego: Harcourt Brace Jovanovich, Publishers, 1981.

Atenció: Aquestes cites poden no estar 100% correctes.