Electronic reproduction. [Missoula, MT] : U.S. Dept. of Agriculture, Forest Service, Northern Region, 2006. Mode of access: World Wide Web. System requirements: PDF reader.
Mode of access: Internet from the FHP web site. Address as of 7/23/08: http://www.fs.fed.us/r1-r4/spf/fhp/publications/bystate/R1Pub06-09%5FJerryJohnsonCampgd.pdf; current access available via PURL.