TY  - BOOK
AU  - Johnson, Richard A. 
AU  - Newell, William T.
AU  - Vergin, Roger C.
TI  - Operations management: a systems concept 
SN  - 0395046955
AV  - TS155.A2.J6 1972 
PY  - 1972///
CY  - Boston
PB  - Houghton Mifflin Company
KW  - Operations management
ER  -