Webb, L. (1974). Purpose and practice in nursery education. Blackwell.
Lua i Stíl Chicago (17ú heag.)Webb, Lesley. Purpose and Practice in Nursery Education. Oxford: Blackwell, 1974.
Lua MLA (8ú heag.)Webb, Lesley. Purpose and Practice in Nursery Education. Blackwell, 1974.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.