1. Baird C. R. Bitner. R. M. 1991. Loose cell management of leafcutting bees in Idaho. Univ. Idaho Coll. Agric. Curr. Inf. Ser. 588.
2. Baird C. R. Homan. H. W. 1996. Idaho insect control recommendations for alfalfa seed production. Univ. Idaho Coll. Agric. Curr. Inf. Ser. 231.
3. Bates D. M. Watts D. G. , 1988. Nonlinear regression analysis and its applications. Wiley, New York.
4. Bawa K. S . 1983. Patterns of flowering in tropical plants, pp. 394–410. In C. E. Jones and R. J. Little [eds.], Handbook of experimental pollination ecology. Van Nostrand Reinhold, New York.
5. Bohart G. E . 1967. How to manage the alfalfa leafcutting bee (Megachile rotundata) for alfalfa pollination. Utah Agric. Exp. Stn. Circ. 144.