TY  - BOOK
AU  - Parr, Andrew
TI  - Hydraulic and pneumatics : A technicians and engineer's guide 
SN  - 0750607939
AV  - TJ 840 .P24 1991
PY  - 1991///
CY  - London 
PB  - Newnes 
N1  - Includes Index
ER  -