Analysis of information sources in references of the Wikipedia article "Movimiento de los derechos de los niños" in Spanish language version.
|chapterurl= sin título (ayuda). Culture of the Future: The Proletkult Movement in Revolutionary Russia. Berkeley: University of California Press. p. 180. Consultado el 21 de septiembre de 2007. «The Moscow Proletkult even passed a "Declaration of Children's Rights," which guaranteed that children could pick their own form of education, their own religion, and could even leave their parents if they chose».