TY  - BOOK
AU  - KOLLER H
TI  - Work Power and Efficiency Programmed Instruction 11
SN  - 0-85501-511-X
PY  - 0000///77
CY  - London
PB  - Siemens Akienge Sellschaft Heyden & Co
KW  - Programmed Instruction 11
ER  -