Lua APA (7ú heag.)

LEVIN, R. I. (1975). Quantitative Approaches To Management Oleh Richard I.levin Dan Charles A.kirkpatrick. McGraw-Hill.

Lua i Stíl Chicago (17ú heag.)

LEVIN, Richard I. Quantitative Approaches To Management Oleh Richard I.levin Dan Charles A.kirkpatrick. McGraw-Hill, 1975.

Lua MLA (8ú heag.)

LEVIN, Richard I. Quantitative Approaches To Management Oleh Richard I.levin Dan Charles A.kirkpatrick. McGraw-Hill, 1975.

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