ORLICKY JOSEPH. (1975). MATERIAL REQUIREMENTS PLANNING. MCGRAW-HILL.
Lua i Stíl Chicago (17ú heag.)ORLICKY JOSEPH. MATERIAL REQUIREMENTS PLANNING. LONDON: MCGRAW-HILL, 1975.
Lua MLA (9ú heag.)ORLICKY JOSEPH. MATERIAL REQUIREMENTS PLANNING. MCGRAW-HILL, 1975.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.