Seifert, K., & Hoffnung, R. J. (1987). Child and adolescent development. Houghton Mifflin Co..
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Dyfyniad Arddull Chicago
Seifert, Kelvin, and Robert J. Hoffnung. Child and Adolescent Development. Boston: Houghton Mifflin Co., 1987.
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Dyfyniad MLA
Seifert, Kelvin, and Robert J. Hoffnung. Child and Adolescent Development. Houghton Mifflin Co., 1987.
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Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.