HAVENS, R. (1966). Economics: Principles of income, prices and growth. Macinillan.
Chicago-čujuhus (17. p.)HAVENS, R. Economics: Principles of Income, Prices and Growth. New York: Macinillan, 1966.
MLA-čujuhus (9. p.)HAVENS, R. Economics: Principles of Income, Prices and Growth. Macinillan, 1966.
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