APA Alıntı

Samuelson, P. A., & Nordhaus, W. D. (1989). Economics/13e (13th ed.). Mc Graw Hill.

Chicago Stili Alıntı

Samuelson, Paul A., ve William D. Nordhaus. Economics/13e. 13th ed. New Delhi: Mc Graw Hill, 1989.

MLA Alıntı

Samuelson, Paul A., ve William D. Nordhaus. Economics/13e. 13th ed. Mc Graw Hill, 1989.