GILLETT BILLY E. (1976). INTRODUCTION TO OPERATIONS RESEARCH. TATA MCGRAW-HILL PUBLISHING COMPANY LIMITED.
Lua i Stíl Chicago (17ú heag.)GILLETT BILLY E. INTRODUCTION TO OPERATIONS RESEARCH. NEW DELHI: TATA MCGRAW-HILL PUBLISHING COMPANY LIMITED, 1976.
Lua MLA (9ú heag.)GILLETT BILLY E. INTRODUCTION TO OPERATIONS RESEARCH. TATA MCGRAW-HILL PUBLISHING COMPANY LIMITED, 1976.
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