1. American Academy of Pediatrics, Committee on Infant and Preschool Child, Newsletter (Supplement), November 15, 1966.
2. American Academy of Pediatrics. Policy statement on day care,Pediatrics, 1973a,51, 947.
3. American Academy of Pediatrics, Committee on Infant and Preschool Child.Recommendations for day care centers for infants and children. Evanston, Illinois, 1973b.
4. American Academy of Pediatrics, Committee on Infant and Prechool Child. Statement on Day Care,Pediatrics, 1975,56, 484.
5. American Academy of Pediatrics. Standards of child health care, 3rd ed., 1977.