Stewart, Harry L. frey50 Pumps / Harry L. Stewart - Second edition First printing - Indianapolis, Indiana Theodore Audel and Company 1984, (1970, 1975, 1977) - 500 p. ISBN: 0672234009 Subjects--Topical Terms: Pumps - pumping machinery - oil hydraulic machinery Dewey Class. No.: 621.6 Ste 12