TY - BOOK AU - Keller,George R. TI - Hydraulic system analysis AV - TJ843 .K39 1969 U1 - 621.2/0424 PY - 1969/// CY - [Cleveland] PB - Published by the editors of Hydraulics & pneumatics magazine KW - Hydraulic circuits KW - Hydraulic control KW - Oil hydraulic machinery N1 - Includes bibliographical references and index ER -