1. Blair, W. Frank. "Isolating Mechanisms and Interspecies Interactions in Anuran Amphibians " Qtr. Rev. of Biol. 39 (1964): 334-344.

2. Blair, W. Frank. "Mating Call in the Speciation of Anuran Amphibians." Am. Naturalist 92 (1958); 27-51.

3. Bond, Alan H., and Les Gasser, eds. Readings in Distributed Artificial Intelligence. San Mateo. CA: Morgan Kaufmann, 1988.

4. Bonner, John T. The Evolution of Culture in Animals. Princeton, NJ; Princeton University Press, 1980-

5. Collins, Robert J., and David R. Jefferson. "AntFarm: Towards Simulated Evolution." This volume.

6. Collins, Robert J., and David R. Jefferson. "Representations for Artificial Organisms." In Proceedings a/Simulation of Adaptive Behavior, eds. Jean-Arcady Meyer and Steward Wilson. Cambridge. MA: MIT Preys/Bradford Books: in press.

7. Elman, Jeffrey L. "Finding Structure in Time." Technical Report CRL 8801, Center for Research in Language, University of California, San Diego, 1988.

8. Frings, Hubert, and Mable Frings. Animal Communication. Norman, OK: University of Oklahoma Press, 1977.

9. Goldberg, David E. Genetic Algorithms in Search, Optimization, and Machine Learning. Reading: MA: Addison-Wesley, 1989.

10. MacLennan, Bruce J. ''Evolution of Communication in a Population of Simple Machines." Technical Report. CS-90-99, Computer Science Department, University of Tennessee, Knoxville, 1990.

11. MacLennan, Bruce J. "Synthetic Ethology; An Approach to the Study of Communication." Technical Report, CS-90-104, Computer Science Department, University of Tennessee, Knoxville, 1990.

12. Rumelhart, D. E., G. E. Hinton, and R. J. Williams. Learning Internal Representations by Error Propagation." In Parallel Distributed Processing, edited by D. Rumelhart and J. McClelland, Volume I. Cambridge, MA: MIT Press/ Bradford Books, 1986.