Cola, R. M. (1992). Urban environmental protection in the Philippines: A country case study. College of Public Administration, University of the Philippines.
Citace podle Chicago (17th ed.)Cola, Raoul M. Urban Environmental Protection in the Philippines: A Country Case Study. Quezon City: College of Public Administration, University of the Philippines, 1992.
Citace podle MLA (9th ed.)Cola, Raoul M. Urban Environmental Protection in the Philippines: A Country Case Study. College of Public Administration, University of the Philippines, 1992.
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