Gappert, G., & Knight, R. V. (1982). Cities in the 21st century. Sage Publications.
Chicago Style (17th ed.) CitationGappert, Gary, and Richard V. Knight. Cities in the 21st Century. Beverly Hills: Sage Publications, 1982.
MLA (9th ed.) CitationGappert, Gary, and Richard V. Knight. Cities in the 21st Century. Sage Publications, 1982.
Warning: These citations may not always be 100% accurate.