wall, W. D. (1977). Constructive education for adolescents. Unesco.
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Dyfyniad Arddull Chicago
wall, W D. Constructive Education for Adolescents. London: Unesco, 1977.
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Dyfyniad MLA
wall, W D. Constructive Education for Adolescents. Unesco, 1977.
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Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.