Berry, B. J. L., Conkling, E. C., & Ray, D. M. (1976). The geography of economic systems / (by) Brian J.L. Berry, Edgar C. Conkling, D. Michael Ray. Prentice-Hall.
Chicago Style (17th ed.) CitationBerry, Brian J. L., Edgar C. Conkling, and D. Michael Ray. The Geography of Economic Systems / (by) Brian J.L. Berry, Edgar C. Conkling, D. Michael Ray. Englewood Cliffs ; London: Prentice-Hall, 1976.
MLA (9th ed.) CitationBerry, Brian J. L., et al. The Geography of Economic Systems / (by) Brian J.L. Berry, Edgar C. Conkling, D. Michael Ray. Prentice-Hall, 1976.
Warning: These citations may not always be 100% accurate.