Burt, Richard O. Gravity concentration technology / Richard O. Burt; assisted by Chris Mills. - Amsterdam : Elsevier, 1985. - xii, 605 p. : ill. ; 26 cm. - Developments in mineral processing ; 5 . ISBN: 0444424113 Subjects--Topical Terms: Gravity concentrators. Dewey Class. No.: 622 / .751