Armey, R. K. (1977). Price theory: A policy-welfare approach. Prentice-Hall.
Chicago-čujuhus (17. p.)Armey, Richard K. Price Theory: A Policy-welfare Approach. Englewood Cliffs: Prentice-Hall, 1977.
MLA-čujuhus (9. p.)Armey, Richard K. Price Theory: A Policy-welfare Approach. Prentice-Hall, 1977.
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