kw.\*:("MUD ROTARY")
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DRILLING MUD INVASION OF UNCONSOLIDATED AQUIFER MATERIALS.DUDGEON CR; COX RJ.1976; AUSTRAL. WAT. RESOURCES COUNC. TECH. PAPER; AUSTRAL.; DA. 1976; NO 17; PP. 1-216; BIBL. 1 P. 1/2; 107 ILL.Serial Issue
