1999

Gabrielle J. Persley, James N. Siedow (Autor/a)

Mark E. Whalon, Barry J. Jacobson, Scott D. Rawlins, Donald Ricks, Scott M. Swinton (Autor/a)

Eric Bradford, R. Lee Baldwin, Harvey Blackburn, Kenneth G. Cassman, Pierre R. Crosson, Christopher L. Delgado, James G. Fadel, Henry A. Fitzhugh, Margaret Gill, James W. Oltjen, Mark W. Rosegrant, Martin Vavra, Robert O. Wilson (Autor/a)

John A. Downing, James L. Baker, Robert J. Diaz, Tony Prato, Nancy N. Rabalais, Roger J. Zimmerman (Autor/a)

G. David Tilman, Donald N. Duvick, Stephen B. Brush, R. James Cook, Gretchen C. Daily, Geoffrey M. Heal, Shahid Naeem, David Notter (Autor/a)