TY  - BOOK
AU  - Spring, H.M. 
TI  - Boiler operator's guide : construction, operation, inspection, and maintenance of steam boilers with 310 typical steam engineer's examination questions and answers
PY  - 1968///
CY  - New York
PB  - McGraw Hill
KW  - Steam-boilers - Handbooks, manuals, etc
ER  -