Lua APA (7ú heag.)

Samuelson, P. A., & Nordhaus, W. D. (2018). Economics (19th.). McGraw Hill Education India) Private Limited.

Lua i Stíl Chicago (17ú heag.)

Samuelson, Paul A., agus William D. Nordhaus. Economics. 19th. New Delhi: McGraw Hill Education India) Private Limited, 2018.

Lua MLA (9ú heag.)

Samuelson, Paul A., agus William D. Nordhaus. Economics. 19th. McGraw Hill Education India) Private Limited, 2018.

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