APA aipamena

Samuelson, P. A., & Nordhaus, W. D. (2017). Economics (19th ed.). McGraw Hill Education.

Chicago Style aipamena

Samuelson, Paul A., and William D. Nordhaus. Economics. 19th ed. Chennai: McGraw Hill Education, 2017.

MLA aipamena

Samuelson, Paul A., and William D. Nordhaus. Economics. 19th ed. McGraw Hill Education, 2017.