Williams, P. D. (1977). Filipino children's concepts of body organs and illness. College of Nursing, University of the Philippines.
Chicago-referens (17:e uppl.)Williams, Phoebe Dauz. Filipino Children's Concepts of Body Organs and Illness. Quezon City: College of Nursing, University of the Philippines, 1977.
MLA-referens (9:e uppl.)Williams, Phoebe Dauz. Filipino Children's Concepts of Body Organs and Illness. College of Nursing, University of the Philippines, 1977.
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