author = { Loeb, Susanna National Bureau of Economic Research Fuller, Bruce AND Carrol, Bidemi AND Carroll, Judith AND Kagan, Sharon Lynn },

title = { Child Care in Poor Communities Early Learning Effects of Type, Quality, and Stability },

publisher = {National Bureau of Economic Research},

year = {September 2003},

booktitle = {NBER working paper series ; no. w9954},

address = { Cambridge, Mass },

url = { http://slubdd.de/katalog?TN_libero_mab2 }