1. Pesticide usage in relation to bee-keeping;Anderson;A. Rev. Ent.,1968
2. Toxicity of pesticides and other agricultural chemicals to honey bees: field study;Anderson;Univ. Calif. agric. Extension, AXT-251,1971
3. Toxicity of pesticides and other agricultural chemicals to honey bees: laboratory studies;Atkins;Univ. Calif. agric. Extension, M-16,1970
4. The alfalfa leaf-cutting bee, Megachile rotundata F. for pollination in cages;Bohart;Crop Sci.,1963
5. Native bees associated with lowbush blueberry in Maine and eastern Canada;Boulanger;Tech. Bull. Me agric. Stn, No. 26 and Can. agric. Res. Stn,1967