kw.\*:("AM. MING CONGR.")
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DECLARATION OF POLICY OF THE AMERICAN MINING CONGRESS.1977; MING CONGR. J.; U.S.A.; DA. 1977; VOL. 63; NO 11; PP. 66-75 (10P.)Article
DECLARATION OF POLICY OF THE AMERICAN MINING CONGRESS1979; MING CONGR. J.; USA; DA. 1979; VOL. 65; NO 11; PP. 96-126; 12 P.Article
