PLOSSL, G. W. (1995). Orlicky's Material Requirements Planning George Plossl. McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)PLOSSL, George W. Orlicky's Material Requirements Planning George Plossl. McGraw-Hill, 1995.
Lua MLA (8ú heag.)PLOSSL, George W. Orlicky's Material Requirements Planning George Plossl. McGraw-Hill, 1995.
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