Sachs , I. (1964). Agriculture Land Reforms and Economic Development b. PWN.
Čikaški stil citiranja (17. izdanje)Sachs , Ignacy. Agriculture Land Reforms and Economic Development B. Warsaw: PWN, 1964.
MLA način citiranja (9. izdanje)Sachs , Ignacy. Agriculture Land Reforms and Economic Development B. PWN, 1964.
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