Definition and world resources of natural bitumens
By: by Richard F. Meyer and Wallace De Witt, Jr.
Contributors: De Witt, Wallace, 1920-
Series: U.S. Geological Survey bulletin ;; 1944
Publisher: U.S. G.P.O.; For sale by the Books and Open-File Reports Section, U.S. Geological Survey
Published: 1990
Place of publication: Washington, D.C; Denver, CO
Language: eng
Number of pages: 14
Subjects: Bitumen.; Asphalt.
Notes: Includes bibliographical references (p. 13-14).