APA-čujuhus (7. p.)

LEVIN, R. I. (1989). Quantitative approaches to management. -- 7th ed. McGraw-Hill.

Chicago-čujuhus (17. p.)

LEVIN, Richard I. Quantitative Approaches to Management. -- 7th Ed. New York: McGraw-Hill, 1989.

MLA-čujuhus (9. p.)

LEVIN, Richard I. Quantitative Approaches to Management. -- 7th Ed. McGraw-Hill, 1989.

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