Machlis, G. E., & Tichnell, D. L. (1985). The state of the world's parks: An international assessment for resource management, policy, and research. Westview Press.
Chicago Style (17th ed.) CitationMachlis, Gary E., and David L. Tichnell. The State of the World's Parks: An International Assessment for Resource Management, Policy, and Research. Boulder, Colo: Westview Press, 1985.
MLA (9th ed.) CitationMachlis, Gary E., and David L. Tichnell. The State of the World's Parks: An International Assessment for Resource Management, Policy, and Research. Westview Press, 1985.
Warning: These citations may not always be 100% accurate.