Cromley, Christine. Bison Management in Greater Yellowstone, Finding Common Ground. 2002. Ed. R. Brunner, C. Colburn, C. Cromley, R. Klein, & E. Olson. Yale University Press, New Haven.
Cromley, Christine. Bison Management in Greater Yellowstone, Finding Common Ground. 2002. Ed. R. Brunner, C. Colburn, C. Cromley, R. Klein, & E. Olson. Yale University Press, New Haven.