Byler, James W.; James, Robert L.; United States. Forest Service. Northern Region. State & Private Forestry(Missoula, Mont. : USDA Forest Service, Northern Region, State & Private Forestry, 1981)
James, Robert L.; Gilligan, Carma J.; Reedy, V.; United States. Forest Service. Northern Region(Missoula, Mont. : U.S. Dept. of Agriculture, Forest Service, Northern Region, 1988)
James, Robert L.; Byler, James W.; United States. Forest Service. Northern Region. State & Private Forestry(Missoula, Mont. : USDA Forest Service, Northern Region, State & Private Forestry, 1981)
James, Robert L.; Woollen, R. L.; United States. Forest Service. Northern Region(Missoula, Mont. : U.S. Dept. of Agriculture, Forest Service, Northern Region, 1989)
James, Robert L.; Gilligan, Carma J.; United States. Forest Service. Northern Region(Missoula, Mont. : U.S. Dept. of Agriculture, Forest Service, Northern Region, 1988)
James, Robert L.; United States. Forest Service. Northern Region(Missoula, Mont. : United States Dept. of Agriculture, Forest Service, Northern Region, 1995-02)
James, Robert L.; Gilligan, Carma J.; United States. Forest Service. Northern Region. Cooperative Forestry & Pest Management(Missoula, Mont. : Cooperative Forestry and Pest Management, Northern Region, USDA Forest Service, 1983)
James, Robert L.; United States. Forest Health Protection; United States. Forest Service. Northern Region(Missoula, MT : U.S. Dept. of Agriculture, Forest Service, Northern Region, 2000-11)
James, Robert L.; United States. Forest Service. Northern Region; United States. Forest Pest Management(Missoula, Mont. : U.S. Dept. of Agriculture, Forest Service, Northern Region, 1987)
James, Robert L.; Gilligan, Carma J.; United States. Forest Service. Northern Region([Missoula, Mont.? : U.S. Dept. of Agriculture, Forest Service, Northern Region?, 1988)
James, Robert L.; Gilligan, Carma J.; United States. Forest Service. Northern Region([Missoula, Mont.? : U.S. Dept. of Agriculture, Forest Service, Northern Region?, 1988)
James, Robert L.; United States. Forest Health Protection; United States. Forest Service. Northern Region(Missoula, MT : U.S. Dept. of Agriculture, Forest Service, Northern Region, 2000-12)