APA (7th ed.) Citation

Berry, B. J. L., Conkling, E. C., & Ray, D. M. (1976). The geography of economic systems. Prentice-Hall.

Chicago Style (17th ed.) Citation

Berry, Brian Joe Lobley, Edgar C. Conkling, and D. Michael Ray. The Geography of Economic Systems. Englewood Cliffs, N.J.: Prentice-Hall, 1976.

MLA (8th ed.) Citation

Berry, Brian Joe Lobley, et al. The Geography of Economic Systems. Prentice-Hall, 1976.