TY  - BOOK
AU  - Wrangham, Digby Alfred
TI  - THEORY & PRACTICE OF HEAT ENGINES
U1  - 621.4 
PY  - 1948///
CY  - London
PB  - English Language Book Society
KW  - Heat-Engines
KW  - Gas And Oil Engines
KW  - Steam-Engines
N1  - Includes Bibliography
ER  -