TY - BOOK AU - Parr, Andrew TI - Hydraulics and pneumatics: a technician's and engineer's guide. -- 2nd ed SN - 0750644192 AV - TJ 840 PAR PY - 1999/// CY - Oxford PB - Butterworth-Heineman KW - ENGINEERING KW - HYDRAULIC MACHINERY--HANDBOOKS, MANUALS, ETC KW - PNEUMATIC MACHINERY--HANDBOOKS, MANUALS, ETC ER -