Flies, Artificial -- Canada, Eastern : Common nymphs of eastern North America : a primer for flyfishers and flytiers / Caleb J. Tzilkowski and Jay R. Stauffer, Jr
2011
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Flies, Artificial -- East (U.S.) : Common nymphs of eastern North America : a primer for flyfishers and flytiers / Caleb J. Tzilkowski and Jay R. Stauffer, Jr