Phillips, H. M. (1975). Basic education--a world challenge: Measures and innovations for children and youth in developing countries. Wiley.
Lua i Stíl Chicago (17ú heag.)Phillips, H. M. Basic Education--a World Challenge: Measures and Innovations for Children and Youth in Developing Countries. London ; New York: Wiley, 1975.
Lua MLA (8ú heag.)Phillips, H. M. Basic Education--a World Challenge: Measures and Innovations for Children and Youth in Developing Countries. Wiley, 1975.
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