APA (7th ed.) Citation

Samuelson, P. A. (1959). Modern treatment of the Ricardian economy. Quarterly Journal of Economics, 73, 217.

Chicago Style (17th ed.) Citation

Samuelson, Paul Anthony. "Modern Treatment of the Ricardian Economy." Quarterly Journal of Economics 73 (1959): 217.

MLA (9th ed.) Citation

Samuelson, Paul Anthony. "Modern Treatment of the Ricardian Economy." Quarterly Journal of Economics, vol. 73, 1959, p. 217.