author = { Hofferth, Sandra L. },

title = { Media Use vs. Work and Play in Middle Childhood },

publisher = {Springer Science and Business Media LLC},

isbn = {1573-0921},

isbn = {0303-8300},

keywords = { General Social Sciences , Sociology and Political Science , Arts and Humanities (miscellaneous) , Developmental and Educational Psychology },

year = {2009},

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