APA aipamena

Williamson, S. D. (2018). Macroeconomics. Harlow, England: Pearson.

Chicago Style aipamena

Williamson, Stephen D. Macroeconomics. Harlow, England: Pearson, 2018.

MLA aipamena

Williamson, Stephen D. Macroeconomics. Harlow, England: Pearson, 2018.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.