Cita APA

Samuelson,Paul A, Nordhaus,William D, Sudip Chaudhuri, & Anindya Sen. (2020). Economics (20th ed.). McGraw Hill.

Citación estilo Chicago

Samuelson,Paul A, Nordhaus,William D, Sudip Chaudhuri, y Anindya Sen. Economics. 20th ed. Chennai: McGraw Hill, 2020.

Cita MLA

Samuelson,Paul A, et al. Economics. 20th ed. McGraw Hill, 2020.