Rosal, R. R., Dugenia, T. P., & Escasa, C. M. (1976). Public health surveys in the Philippines: A compilation of research reports. Institute of Public Health Library, University of the Philippines System.
Chicago-referens (17:e uppl.)Rosal, Rosvida Revatoris, Theresa P. Dugenia, och Conchita M. Escasa. Public Health Surveys in the Philippines: A Compilation of Research Reports. Manila: Institute of Public Health Library, University of the Philippines System, 1976.
MLA-referens (9:e uppl.)Rosal, Rosvida Revatoris, et al. Public Health Surveys in the Philippines: A Compilation of Research Reports. Institute of Public Health Library, University of the Philippines System, 1976.
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