TY  - BOOK
AU  - Gitlow,howard S
AU  - Melnyck,richard J
AU  - Levine,david M
TI  - Guide to six sigma and process improvement for practitioners and students: Foundations,DMAIC,tools,cases and certification 
SN  - 9780133925364
U1  - 658.4013 
PY  - 2015///
CY  - New jersey
PB  - Pearson Education
KW  - Management
ER  -