Não informado. (2013). Social Development Issues. University of Iowa, School of Social Work.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Social Development Issues. Iowa City, Iowa: University of Iowa, School of Social Work, 2013.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Social Development Issues. University of Iowa, School of Social Work, 2013.
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