Khan, Z.S. Source assessment: polyvinyl chloride / 1977 Z. S. Khan and T. W. Hughes - Washington, D.C. : United States Environmental Protection Agency, 1978 - xiv, 91 p. : ill., 29 cm. - Environmental protection technology series . EPA-600/2-78-004i Includes bibliographical references Subjects--Topical Terms: PolyvinylPollution Dewey Class. No.: 668.4236