"Faculty Highlights"(PDF). Newsletter of the Biological Society of New Mexico. 5: 1. July 1989. Archived from the original(PDF) on 2020-08-06. Retrieved 2015-03-21.
Thornhill, R. (January 2015). "Curriculum Vitae". Retrieved 21 March 2015.
web.archive.org
"Faculty Highlights"(PDF). Newsletter of the Biological Society of New Mexico. 5: 1. July 1989. Archived from the original(PDF) on 2020-08-06. Retrieved 2015-03-21.