HQ767.8-792.2: Children. Child development Including child rearing, child life, play, socialization, children's rights
HQ793-799.2: Youth. Adolescents. Teenagers
HV1-9960: Social pathology. Social and public welfare. Criminology
HV40-69: Social service. Social work. Charity organization and practice. Including social case work, private and public relief, institutional care, rural social work, work relief
HV697-4959: Protection, assistance and relief
HV701-1420.5: Children
HV835-847: Foundlings
HV873-887: Destitute, neglected, and abandoned children. Street children
HV888-907: Children with disabilities
HV931-941: Fresh-air funds
HV959-1420.5: Orphanages. Orphans
HV1421-1441: Young adults. Youth. Teenagers
KF: Law of the United States
RJ101-103: Child health. Child health services
RJ125-145: Physiology of children and adolescents
RJ206-235: Nutrition and feeding of children and adolescents