1. Alcorn, S.M., 1959–1960. Natural history of the saguaro. University of Arizona Arid Lands Colloquia 1959–60/1960–61, pp. 23–29.
2. Attrition of a saguaro forest;Alcorn;Plant Disease Reporter,1962
3. Ecology of the saguaro (Carnegiea gigantea);Brum;Madrono,1973
4. Carbon dioxide exchange in saguaro seedlings;Despain;Ecology,1970
5. The survival of saguaro (Carnegiea gigantea) seedlings on soils of differening albedo and cover;Despain;Journal of the Arizona Academy of Science,1974