George, K. D., Joll, C., & Lynk, E. L. (1992). Industrial organisation: Competition, growth, and structural change (4th ed.). Routledge.

George, Kenneth Desmond, Caroline Joll, and E. L. Lynk. Industrial Organisation: Competition, Growth, and Structural Change. 4th ed. London ; New York: Routledge, 1992.

George, Kenneth Desmond, et al. Industrial Organisation: Competition, Growth, and Structural Change. 4th ed. Routledge, 1992.