TY  - BOOK
AU  - Houghton, P S
AU  - 
TI  - Gears: spno, belical, bevel internal, epicyclic and worm
U1  - 621.38 
PY  - 1970///
CY  - London
PB  - Technical press
KW  - spno gears
KW  - belical gears
KW  - bevel gears
KW  - epicyclic gears
KW  - work gears
ER  -