TY  - BOOK
AU  - Severns, William H.
AU  - Degler, Howard E.
AU  - Miles, John C.
TI  - Steam Air and Gas Power 
U1  - 621.4 
PY  - 1954///
CY  - New York : 
PB  - John Wiley, 
KW  - Steam Engineering
N1  - NN
ER  -