TY  - BOOK
AU  - Houghton,Philip Stephen
TI  - Gears : : spur, helicalm bevel, internal, epicyclic and worm / 
U1  - 621.83 HOU 
PY  - 1970///
CY  - London : 
PB  - Technical Press , 
KW  - Gearing
N1  -  Includes bibliographical references
ER  -