Spread of white pine blister rust from ribes to sugar pine in California and oregon
Kimmey, J.W., and Others
Spread of white pine blister rust from ribes to sugar pine in California and oregon - Washington 1961 - 1-71 p. - Sugar United States Department of Agricultuer. Technical Bulletin No. 1251 .
Spread of white pine blister rust from ribes to sugar pine in California and oregon - Washington 1961 - 1-71 p. - Sugar United States Department of Agricultuer. Technical Bulletin No. 1251 .