Ptak, C. A., Smith, C., & Orlicky, J. (2011). Orlicky's material requirements planning (Third edition.). McGraw-Hill.
Chicago Style (17th ed.) CitationPtak, Carol A., Chad Smith, and Joseph Orlicky. Orlicky's Material Requirements Planning. Third edition. New York: McGraw-Hill, 2011.
MLA (9th ed.) CitationPtak, Carol A., et al. Orlicky's Material Requirements Planning. Third edition. McGraw-Hill, 2011.
Warning: These citations may not always be 100% accurate.