TY - BOOK AU - Yen,Teh Fu AU - Chilingarian,George V. TI - Bitumens, asphalts and tar sands SN - 0444416196 PY - 1978/// CY - Amsterdam, Neth. PB - Elsevier KW - Bitumen KW - Asphalt KW - Oil sands N1 - Includes bibliographical references and index ER -