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.
Цитирование в стиле Чикаго (17-е изд.)Machlis, Gary E., и David L. Tichnell. The State of the World's Parks: An International Assessment for Resource Management, Policy, and Research. Boulder, Colo: Westview Press, 1985.
Цитирование MLA (9-е изд.)Machlis, Gary E., и David L. Tichnell. The State of the World's Parks: An International Assessment for Resource Management, Policy, and Research. Westview Press, 1985.
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