Article Title,Year,Volume,Issue,Page Range,Author
On the origin of juvenile delinquency,1960,19,,185-189,Leon
Juvenile delinquency,1963,21,,56-58,Naviamonedero
Origin of child vagrancy in bogota. Vagrancy as the main cause of offences against society,1963,21,,19-40,Leon
Delinquency and medico-psychological problems of the adolescent,1962,20,,50-53,Guzman