Books by Richard Yahner
Biotic Inventory in the Schwoe
Biotic Inventory in the Schwoebel Tract at Valley Forge National Historical Park
Inventory of Amphibian and Rep
Inventory of Amphibian and Reptile Species at Gettysburg National Military Park and Eisenhower National Historic Site
Inventory of Amphibians, Repti
Inventory of Amphibians, Reptiles, and Mammals at Allegheny Portage Railroad National Historic Site and Johnstown Flood National Memorial
Inventorying and Monitoring Pr
Inventorying and Monitoring Protocols of Amphibians and Reptiles in National Parks of the Eastern United States
Inventorying and Monitoring Pr
Inventorying and Monitoring Protocols of Vertebrates in National Park Areas of the Eastern United States