APA aipamena

samuelson ,Paul. (2005). Economics. Tata McGraw Hill Publ.

Chicago Style aipamena

samuelson ,Paul. Economics. New delhi: Tata McGraw Hill Publ, 2005.

MLA aipamena

samuelson ,Paul. Economics. Tata McGraw Hill Publ, 2005.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.