TY  - BOOK
AU  - Walker William Francis
AU  - Sellors G N
TI  - Guide to industrial hydraulics
SN  - 0408000813
AV  - TJ838 
PY  - 1972///
CY  - London
PB  - Newnes-Butterworths
KW  - Fluid power technology
KW  - Oil hydraulic machinery
ER  -