Importing and managing the alfalfa leaf-cutter bee
Hobbs, G.A.
Importing and managing the alfalfa leaf-cutter bee - Canada 1964 - 0.833333333 - No. 1209; Canada Department of Agricultural Entomological Branch .
Importing and managing the alfalfa leaf-cutter bee - Canada 1964 - 0.833333333 - No. 1209; Canada Department of Agricultural Entomological Branch .