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Citação do estilo Chicago (17ª ed.)Society for Adolescent Medicine. Journal of Adolescent Health. New York: Elsevier Science Publishers, 1991.
Citação MLA (8ª ed.)Society for Adolescent Medicine. Journal of Adolescent Health. Elsevier Science Publishers, 1991.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.