Sandahl, H. D. (9 May 1969). "Review of Mathematical Ideas in Biology by J. Maynard Smith". Science. 164 (3880): 682–683. doi:10.1126/science.164.3880.682.
Breed, Michael (March 2005). "Review of Animal Signals by John Maynard Smith and David Harper". The Quarterly Review of Biology. 80 (1): 126. doi:10.1086/431089.