1. Footpaths: a Practical Handbook. British Trust for Conservation Volunteers;Agate,1996
2. Research for the Development of Best Management Practices for Minimizing Horse Trail Impacts on the Hoosier National Forest;Aust,2004
3. Guide to Sustainable Mountain Trails: Trail Assessment, Planning and Design Sketchbook. USDI National Park Service;Basch,2007
4. Appalachian Trail Design, Construction, and Maintenance;Birchard,2000
5. Lightly on the land: the SCA trail-building and maintenance manual;Birkby,2005