• Bonner, J.T. 2000. First Signals. The Evolution of Multicellular Development. Princeton University Press, Princeton.
  • Buss, L.W. 1987. The Evolution of Individuality. Princeton University Press, Princeton.
  • Dawkins, R. 1982. Replicators and vehicles. In: Current Problems in Sociobiology (King's College Sociobiology Group, ed.), pp. 4564. Cambridge University Press, Cambridge.
  • Dawkins, R. 1989. The Selfish Gene, New edition. Oxford University Press, Oxford.
  • Grime, J.P. & Mackey, J.M.L. 2002. The role plasticity in resource capture by plants. Evol. Ecol. 16: 299307.
  • Huxley, J.S. 1949. Individuality. Encyclopedia Britannica 12: 256257.
  • Michod, R.E. 1999. Darwinian Dynamics: Evolutionary Transitions in Fitness and Individuality. Princeton University Press, Princeton.
  • Pineda-Krch, M. & Lehtilä, K. 2004. Costs and benefits of genetic heterogeneity within organisms. J. Evol. Biol. doi: 10.1111/j.1420-9101.2004.00808.x.
  • Suomela, J. & Ayers, M.P. 1994. Within-tree and among-tree variation in leaf characteristics of mountain birch and its implications for herbivory. Oikos 70: 212222.
  • Williams, G.C. 1966. Adaptation and Natural Selection. Princeton University Press, Princeton.