APA (7th ed.) Zitazioa

Fryer, D. W. (1965). World economic development. McGraw-Hill.

Chicago Style (17th ed.) Zitazioa

Fryer, Donald W. World Economic Development. New York: McGraw-Hill, 1965.

MLA (9th ed.) Zitazioa

Fryer, Donald W. World Economic Development. McGraw-Hill, 1965.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.