Preliminary report on the ground-water resources of Tualatin Valley, Oregon
Donald H. Hart
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Reuben Clair Newcomb
D.R. Cline
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Mark W. Busby
Richard E. Krause
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Sharon E. Matthews
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Harold E. Gill
M.L. Davisson
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R.E. Criss
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K.R. Campbell
Reuben Clair Newcomb
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D.H. Hart