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Coal Resources of the Fruitland Formation in Part of the Ute Mountain Ute Indian Reservation, San Juan County, New Mexico
Laura N. Robinson RobertsGeological Survey (U.S.)
出版U.S. Government Printing Office, 1991
URLhttp://books.google.com.hk/books?id=VoGtL1nLYdUC&hl=&source=gbs_api
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