TY  - BOOK
AU  - Gagne,Robert Mills
TI  - Psychological principles in system development
AV  - TA168 .G3
U1  - 621 
PY  - 1962///]
CY  - New York
PB  - Holt, Rinehart and Winston
KW  - Systems engineering
KW  - Local
KW  - Human engineering
N1  - 921004; Includes bibliography
ER  -