Sachs , I. (1965). Foreign Trade and Economic Development of Underdeveloped Countries. Asia Publishing House.
Chicago-čujuhus (17. p.)Sachs , Ignacy. Foreign Trade and Economic Development of Underdeveloped Countries. India: Asia Publishing House, 1965.
MLA-čujuhus (9. p.)Sachs , Ignacy. Foreign Trade and Economic Development of Underdeveloped Countries. Asia Publishing House, 1965.