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Jay R. Stauffer Jr.
Jay R. Stauffer Jr. is Distinguished Professor of Ichthyology in the School of Forest Resources at Penn State University.Jay R. Stauffer Jr. is Distinguished Professor of Ichthyology in the School of Forest Resources at Penn State University.
Buku oleh Jay R. Stauffer Jr.
Common Nymphs of Eastern North America: A Primer for Flyfishers and Flytiers