1. Predator-prey interactions, pp 1-19 in Behavior of Captive Wild Animals. eds. Chicago, Nelson-Hall, 1978.
2. River otters in captivity: A review, pp 315-327 in Breeding Endangered Species in Captivity. ed. San Francisco, Academic Press, 1975.
3. Strangers in a strange land: Abnormal behaviors or abnormal environments, pp 1-27 in Captivity and Behavior. eds. New York, Van Nostrand Reinhold, 1979.