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1957
Northcraft, Martin, Warren C. Westgarth, and Oregon. State Water Resources Board. Water quality data inventory supplement In Bulletin (Oregon. State Water Resources Board). Vol. no.2. [Corvallis, Or.]: Engineering Experiment Station, Oregon State College, 1957.
1956
Westgarth, Warren C., Martin Northcraft, and Oregon. State Water Resources Board. Water quality data inventory In Bulletin (Oregon State University. Engineering Experiment Station). Vol. no.1. [Corvallis, OR]: Engineering Experiment Station, Oregon State College, 1956.