APA (7th ed.) Zitazioa

Lange.Oskar. (1971). POLITICAL ECONOMY: PWN- POLISH SCIENTIFIC PUBLISHERS. WARSZAWA.

Chicago Style (17th ed.) Zitazioa

Lange.Oskar. POLITICAL ECONOMY: PWN- POLISH SCIENTIFIC PUBLISHERS. panstwowe wydawnictwo naukowe: WARSZAWA, 1971.

MLA (9th ed.) Zitazioa

Lange.Oskar. POLITICAL ECONOMY: PWN- POLISH SCIENTIFIC PUBLISHERS. WARSZAWA, 1971.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.