Kelley N. Robinson
Challand, Helen J., Ph.D.,
Activities in the Life Sciences.
Childrens Press, Chicago, 1982.
Ibid.
Activities in the Earth Sciences,
Children’s Press, Chicago, 1982.
Diamond, Arthur,
The Bhopal Chemical Leak,
Lucent Books, Inc., San Diego, CA, 1990.
Fenter, Barbara and D. X.
Natural Foods,
Franklin Watts, Inc., New York, 1974.
Billings, Charlene W.,
Pesticides—Necessary Risk,
Enslow Publishers, Inc., NJ, 1993.