Andersson, M. (1999). The early childhood environment rating scale (ECERS) as a tool in evaluating and improving quality in preschools. Stockholm Institute of Education Press.
Lua i Stíl Chicago (17ú heag.)Andersson, Mona. The Early Childhood Environment Rating Scale (ECERS) as a Tool in Evaluating and Improving Quality in Preschools. Stockholm: Stockholm Institute of Education Press, 1999.
Lua MLA (8ú heag.)Andersson, Mona. The Early Childhood Environment Rating Scale (ECERS) as a Tool in Evaluating and Improving Quality in Preschools. Stockholm Institute of Education Press, 1999.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.