au.\*:("HORNBACK VQ")
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DILLON DAM, SPILLWAY SHAFT, AND DIVERSION TUNNEL, SUMMIT COUNTY, COLORADO.WAHLSTROM EE; HORNBACK VQ.1968; ENG. GEOL. CASE HIST., U.S.A; USA; 1968, NUM. 0006, P. 13 A 21Miscellaneous