S.Goel Parveen, Gupta Praveen, & Jain Rajeev. (2004). Six Sigma for Transactions and Service (In lần thứ 1.). American: McGraw -Hill.
Chicago ZitierstilS.Goel Parveen, Gupta Praveen, und Jain Rajeev. Six Sigma for Transactions and Service. In lần thứ 1. American: McGraw -Hill, 2004.
MLA ZitierstilS.Goel Parveen, Gupta Praveen, und Jain Rajeev. Six Sigma for Transactions and Service. In lần thứ 1. American: McGraw -Hill, 2004.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.