Tohutoro APA (7th ed.)
DIAZ, P. (1987). SINDROME DE DOWN. CENTRO DE EDUCACION FAMILIAR ESPECIAL.
Tohutoru Kātū Chicago (17th ed.)
DIAZ, P. SINDROME DE DOWN. PAMPLONA: CENTRO DE EDUCACION FAMILIAR ESPECIAL, 1987.
Tohutoro MLA (9th ed.)
DIAZ, P. SINDROME DE DOWN. CENTRO DE EDUCACION FAMILIAR ESPECIAL, 1987.
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