APA (7th ed.) Citation

Samuelson, P. A., & Nordhaus, W. D. (1970). Economics. McGraw-Hill.

Chicago Style (17th ed.) Citation

Samuelson, Paul Anthony, and William D. Nordhaus. Economics. New York: McGraw-Hill, 1970.

MLA (9th ed.) Citation

Samuelson, Paul Anthony, and William D. Nordhaus. Economics. McGraw-Hill, 1970.