Lua APA (7ú heag.)

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

Lua i Stíl Chicago (17ú heag.)

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

Lua MLA (9ú heag.)

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

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.