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
, by Tzilkowski, Caleb J.; Weber, Andrew S.; Callahan, Kristina K.; Marshall, Matthew R.; National Park Service- ISBN: 9781492166757 | 1492166758
- Cover: Paperback
- Copyright: 8/28/2013