APA-čujuhus (7. p.)

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

Chicago-čujuhus (17. p.)

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

MLA-čujuhus (9. p.)

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

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