Hildebrand, V., & Hearron, P. F. (1999). Guiding young children (Sixteh edition.). Merrill.
Lua i Stíl Chicago (17ú heag.)Hildebrand, Verna, agus Patricia F. Hearron. Guiding Young Children. Sixteh edition. Upper Saddle River, N.J.: Merrill, 1999.
Lua MLA (8ú heag.)Hildebrand, Verna, agus Patricia F. Hearron. Guiding Young Children. Sixteh edition. Merrill, 1999.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.