VOLLMANN E. (1989). MANUFACTURING PLANNING AND CONTROL SYSTEMS. GALGOTIA PUBLICATION.
Lua i Stíl Chicago (17ú heag.)VOLLMANN E. MANUFACTURING PLANNING AND CONTROL SYSTEMS. NEW DELHI: GALGOTIA PUBLICATION, 1989.
Lua MLA (9ú heag.)VOLLMANN E. MANUFACTURING PLANNING AND CONTROL SYSTEMS. GALGOTIA PUBLICATION, 1989.
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