Bush, R. Mitchell, Heese, David W., Gray, Clinton W., and James,A. Everette, Jr. 1976. "
Surgical repair of tusk injury (pulpectomy) in an adult, male forest elephant (Loxodonta cyclotis)."
The Journal of the American Dental Association, 93, (2) 372–375.
https://doi.org/10.14219/jada.archive.1976.0480.