Air and gas cleanup equipment, 1972 / - 2nd ed. - Park Ridge, N.J. : Noyes Data, 1972 - ix, 554 p. : ill. ; 28 cm. ISBN: 0815504594 : USD 36.00 Subjects--Topical Terms: Air--Purification--Equipment and supplies--Catalogs Dewey Class. No.: 697.9