Cita APA (7a ed.)

Samuelson Paul & Nordhaus, W. D. (2012). Economics (19th.). Tata McGraw Hill.

Cita Chicago Style (17a ed.)

Samuelson Paul y William D. Nordhaus. Economics. 19th. Chennai: Tata McGraw Hill, 2012.

Cita MLA (9a ed.)

Samuelson Paul y William D. Nordhaus. Economics. 19th. Tata McGraw Hill, 2012.