APA-čujuhus (7. p.)

SILK, L. S. (1975). Contemporary economics: Principles and Issues (2nd ed.). McGraw-Hill.

Chicago-čujuhus (17. p.)

SILK, Leonard S. Contemporary Economics: Principles and Issues. 2nd ed. New York: McGraw-Hill, 1975.

MLA-čujuhus (9. p.)

SILK, Leonard S. Contemporary Economics: Principles and Issues. 2nd ed. McGraw-Hill, 1975.

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