Lua APA (7ú heag.)

Clark, C. (1960). The conditions of economic progress (3th.ed.). Garland Pub..

Lua i Stíl Chicago (17ú heag.)

Clark, Colin. The Conditions of Economic Progress. 3th.ed. New York: Garland Pub., 1960.

Lua MLA (9ú heag.)

Clark, Colin. The Conditions of Economic Progress. 3th.ed. Garland Pub., 1960.

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