Cita APA (7th ed.)

Samuelson, P. A. (2017). Economics (19.). McGrawHill.

Cita Chicago (17th ed.)

Samuelson, Paul A. Economics. 19. Chennai: McGrawHill, 2017.

Cita MLA (9th ed.)

Samuelson, Paul A. Economics. 19. McGrawHill, 2017.