APA aipamena

Samuelson, P. A. (2013). Macroeconomics (19.). McGrawHill.

Chicago Style aipamena

Samuelson, Paul A. Macroeconomics. 19. New Delhi: McGrawHill, 2013.

MLA aipamena

Samuelson, Paul A. Macroeconomics. 19. McGrawHill, 2013.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.