Phillips, H. M. (1975). Basic education--a world challenge: Measures and innovations for children and youth in developing countries. Wiley.
Παραπομπή σε μορφή Chicago (17η εκδ.)Phillips, Herbert Moore. Basic Education--a World Challenge: Measures and Innovations for Children and Youth in Developing Countries. London: Wiley, 1975.
Παραπομπή σε μορφή MLA (9th εκδ.)Phillips, Herbert Moore. Basic Education--a World Challenge: Measures and Innovations for Children and Youth in Developing Countries. Wiley, 1975.
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