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Microform図書
National Diet Library
- Subject Heading...hed Coal mines and mining -- Environmental aspec...
- Note (General)Cover title "August 1976." Physical description for original version: iv, 39 leaves : 28 cm
- Note (Original Version)原資料の出版事項: [Helena, Mont.?] : Missouri River Basin Commission......1976] SUPTDOC番号: Y 3.M 69/2: 2 Y 43/3 a/x