TY  - BOOK
AU  - Parr,Andrew
TI  - Hydraulics and penumatics : a technician's and engineer's guide
SN  - 0750607939
PY  - 1991///
CY  - Oxford : 
PB  - Butterworth - Heinemann, 
KW  - Hydraulics
KW  - Penumatics
ER  -