Hildebrand, V. (1990). Management of child development centers (2nd ed.). Macmillan Publishing Company.
Lua i Stíl Chicago (17ú heag.)Hildebrand, Verna. Management of Child Development Centers. 2nd ed. New York: Macmillan Publishing Company, 1990.
Lua MLA (9ú heag.)Hildebrand, Verna. Management of Child Development Centers. 2nd ed. Macmillan Publishing Company, 1990.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.