APA-čujuhus (7. p.)

Nichols, D. A., & Reynolds, C. W. (1971). Principles of economics. Holt, Rinehart and Winston.

Chicago-čujuhus (17. p.)

Nichols, Donald A., juo Clark W. Reynolds. Principles of Economics. Nueva York: Holt, Rinehart and Winston, 1971.

MLA-čujuhus (9. p.)

Nichols, Donald A., juo Clark W. Reynolds. Principles of Economics. Holt, Rinehart and Winston, 1971.

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