APA (7th ed.) Citation

Cullingworth, J. B., & Orr, S. C. (1969). Regional and urban studies: A social science approach. Sage Publications.

Chicago Style (17th ed.) Citation

Cullingworth, J. B., and S. C. Orr. Regional and Urban Studies: A Social Science Approach. Beverly Hills, Calif.: Sage Publications, 1969.

MLA (9th ed.) Citation

Cullingworth, J. B., and S. C. Orr. Regional and Urban Studies: A Social Science Approach. Sage Publications, 1969.