Raamatud Caleb Tzilkowski
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Level I Water Quality Inventory and Aquatic Biological Assessment of the Allegheny Portage Railroad National Historic Site and the Johnstown Flood National Memorial
Caleb Tzilkowski, Scott Sheeder, National Park Service, National Park Service Staff
22,99 €
30,65 €
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Wadeable Stream Monitoring in Allegheny Portage Railroad National Historic Site, Delaware Water Gap National Recreation Area, Johnstown Flood National Memorial, and Upper Delaware Scenic and Recreational River Eastern Rivers and Mountains Network 2010 Sum
Caleb Tzilkowski, Andrew Weber, Kristina Callahan, Matthew Marshall, National Park Service Staff
16,09 €
21,45 €
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