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by Marietta, Don, Jr.; Embree, Lester; Callicott, J Baird; et al.
by Overholt, Thomas W.; Callicott, Baird J.
by By J. Baird Callicott, John van Buren, and Keith Wayne Brown
by Callicott, J. Baird
by Callicott, J. Baird; McRae, James
by Zimmerman, Michael E.; Callicott, J. Baird; Clark, John; et al.
by Leopold, Aldo; Callicott, J. Baird; Freyfogle, Eric T.