Lua APA (7ú heag.)

Villar, A. S. (2008). Coping with down's syndrome. Smart Parenting.

Lua i Stíl Chicago (17ú heag.)

Villar, Anna Santos. "Coping with Down's Syndrome." Smart Parenting 2008.

Lua MLA (9ú heag.)

Villar, Anna Santos. "Coping with Down's Syndrome." Smart Parenting, 2008.

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