[Documentos, documentos contribución, subponencias, y actas resumidas del Duodécimo Congreso Panamericano del Niño.
Contributors: Interamerican Children's Institute.
Published: 1963
Place of publication: Mar del Plata?
Language: spa
Subjects: Juvenile delinquency -- America.
Notes: At head of title: Instituto Interamericano del Niño.