Definition and world resources of natural bitumens /
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| Corporate Author: | |
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| Format: | Government Document Book |
| Language: | English |
| Published: |
[Reston, Va.] :
Dept. of the Interior, U.S. Geological Survey, ;
1990.
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| Series: | U.S. Geological Survey bulletin ;
1944. |
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| Item Description: | Shipping list number: 90-571-P. |
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| Physical Description: | iv, 14 pages : illustrations ; 28 cm. |
| Bibliography: | Includes bibliographical references (pages 13-14). |