by Ryan R.B
Published in PNW research note - United States Dept of Agriculture (1980)

by Ryan, R.B
Published in Canadian entomologist (01.08.1985)

by Ryan, R.B
Published in Canadian entomologist (01.12.1986)

by Ryan R.B, Bousfield W.E, Johanningmeier C.W, Parsons G.B, Schmitz R.F, Theroux L.J
Published in USDA Forest Service Research Note PNW (USA). no. 290 (1977)

by Ryan, R.B, Yoshimoto, C.M
Published in Canadian entomologist (01.12.1975)

by Ryan, R.B, Bousfield, W.E, Miller, G.E, Finlayson, T
Published in Journal of economic entomology (1974)

by Ryan, R.B
Published in Environmental entomology (01.06.1997)

by Ryan, R.B
Published in Canadian entomologist (1985)

by Ryan R.B
Published in Canadian Entomologist (1983)

by RYAN, R.B
Year of Publication 20.03.1986

by Ryan R.B
Published in Canadian Entomologist (1979)

by Ryan, R.B
Published in USDA For Serv Res Note PNW Pac Northwest For Range Exp Stn US Dep Agric (1974)

by Ryan, R.B
Published in Entomol Soc Amer Ann (1971)

by Ryan, R.B, Medley, R.D
Published in Journal of economic entomology (1970)

by Ryan R.B, Theroux L.J
Published in Canadian Entomologist (1981)

by Ryan, R.B
Published in Canadian entomologist (01.09.1983)

by Ryan, R.B, Denton, R.E
Published in USDA For Serv Res Note PNW Pac Northwest For Range Exp Stn US Dep Agric (1973)

by Ryan, R.B, Medley, R.D
Published in Entomol Soc Amer Ann (1972)

by Torgersen T.R, Ryan R.B
Published in Annals of the Entomological Society of America (1981)

by Ryan, R.B
Published in Canadian entomologist (01.01.1985)