1. Cain, AJ (1983). Ecology and ecogenetics of terrestrial molluscan populations. In: Russel-Hunter WD (ed) The Mollusca, Academic Press: New York, pp 597–647.
2. Cain, AJ, Currey, JD (1963). Area effects in Cepaea. Philos Trans R Soc London [B], 246: 1–81.
3. Cain, AJ, Cook, LM, Currey, JD (1990). Population size and morph frequency in a long-term study of Cepaea nemoralis. Proc Roy Soc Lond, 240: 231–250.
4. Cameron, RAD, Dillon, PJ (1984). Habitat stability, population histories and patterns of variation in Cepaea. Malacologia, 25: 271–291.
5. Cameron, RAD, Pannett, DJ (1985). Interaction between area effects and variation with habitat in Cepaea. Biol J Linn Soc, 24: 365–379.