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U.S. Geological Survey. 1917. Water Resources Data for Co locado. <br />~ Water Year 1977. Vol. 3. Dolores River Basin, Green River <br />•~ Basin, Sao Juan River Basin. Data Report CO-77-3. 412 pp. <br />Wiggins, G. 1977. Larval of the Yorth American caddisfly genera <br />(Trichoptera). University of Toronto Press, Toronto. 401 pp. <br /> <br />• <br />9 <br />