Harms, T., Clifford, R. M., & Cryer, D. (2005). Early childhood environment rating scale (Rev. ed., updated.). Teachers College, Columbia University..
Chicago (17e ed.) BronvermeldingHarms, Thelma, Richard M. Clifford, en Debby Cryer. Early Childhood Environment Rating Scale. Rev. ed., updated. New York: Teachers College, Columbia University., 2005.
MLA (8e ed.) BronvermeldingHarms, Thelma, et al. Early Childhood Environment Rating Scale. Rev. ed., updated. Teachers College, Columbia University., 2005.
Let op: Deze citaties zijn niet altijd 100% accuraat.