American Academy of Pediatrics. Committee on Infant and Preschool Child. (1973). Recommendations for day care centers for infants and children. American Academy of Pediatrics.
Chicago-referens (17:e uppl.)American Academy of Pediatrics. Committee on Infant and Preschool Child. Recommendations for Day Care Centers for Infants and Children. Evanston, Ill.: American Academy of Pediatrics, 1973.
MLA-referens (8:e uppl.)American Academy of Pediatrics. Committee on Infant and Preschool Child. Recommendations for Day Care Centers for Infants and Children. American Academy of Pediatrics, 1973.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.