APA (7th ed.) Citation

Gilbert, E. W., Beckinsale, R. P., & Houston, J. M. (1968). Urbanization and its problems: Essays in honour of E. W. Gilbert. Blackwell.

Chicago Style (17th ed.) Citation

Gilbert, Edmund William, R. P. Beckinsale, and J. M. Houston. Urbanization and Its Problems: Essays in Honour of E. W. Gilbert. Oxford: Blackwell, 1968.

MLA (9th ed.) Citation

Gilbert, Edmund William, et al. Urbanization and Its Problems: Essays in Honour of E. W. Gilbert. Blackwell, 1968.