TY  - BOOK
AU  - Koller, Alois
AU  - Koller, Alois
TI  - Work, power and efficiency
SN  - 8122402275
AV  - 531.6 KOL 1989 
U1  - 531.6 KOL 1989 
PY  - 1989///
CY  - New Delhi
PB  - Wiley
KW  - Electronic Engineering
ER  -