1. Barker, R. G. (1968). Ecological Psychology. Stanford, CA: Stanford University Press.
2. Bottoms, A. E. and Xanthos, P. (1981). “Housing policy and crime in the British Public sector.” In Brantingham, P. J. and Brantingham, P. L. (Eds.), Environmental Criminology. Beverly Hills, CA: Sage.
3. Brantingham, P. L. and Brantingham, P. J. (1981). “Notes on the geometry of crime.” In Brantingham, P. J. and Brantingham, P. L. (Eds.), Environmental Criminology.Beverly Hills, CA: Sage.
4. Brown, B. and Altman, I. (1981). “Territoriality and residential crime: a conceptual framework.” In Brantingham, P. J. and Brantingham, P. L. (Eds.), Environmental Criminology. Beverly Hills, CA: Sage.
5. Clarke, R. V. G. (1980). “Situational crime prevention: theory and practice.” British Journal of Criminology, 20, 136–145.