GILL, R. T. (1978). Economics: A text with readings.-- ed.3. Goodyear Pub.
Chicago-čujuhus (17. p.)GILL, Richard T. Economics: A Text with Readings.-- Ed.3. California: Goodyear Pub, 1978.
MLA-čujuhus (9. p.)GILL, Richard T. Economics: A Text with Readings.-- Ed.3. Goodyear Pub, 1978.
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