F. Ayala
Ayala, F. J., R.K. Colwell, P.R. Ehrlich, Hardy Eshbaugh, Jerry F. Franklin, D. Freckman, D.H. Knight, et al. 1996. “The Endangered Species Act. Open Letter from Leaders of Scientific Professional Societies (to U.S. Senator Dirk Kempthorne)”. Bull. Ecol. Soc. Am.