Membrane technology in the chemical industry. - New York : United Nations, 1990. - v, 91 p. : ill. ; 30 cm. At head of title: Economic Commission for Europe, Geneva. "ECE/CHEM/72." ISBN: 9211164656 LCCN: 90222703 Subjects--Topical Terms: Membranes (Technology) Dewey Class. No.: 660.2842 / MEM.N0