Treybal Robert Ewald 1915 Mass-transfer operations Robert E. Treybal - New York: McGraw-Hill [1967, c1968] - 717 p. illus. 23 cm. - McGraw-Hill chemical engineering series . Includes bibliographies. Subjects--Topical Terms: Chemical engineeringMass transfer LC Class. No.: TP156.M3 Dewey Class. No.: 660