author = { },

title = { Historical statistics of the United States 2 = Pt. B Work and welfare },

edition = { Millennial ed., 1. publ. } ,

publisher = {Cambridge Univ. Press},

isbn = {0521585406},

isbn = {9780521585408},

keywords = { USA , Sozialgeschichte , Historische Statistik , Bildungswesen , Gesundheitswesen },

year = {2006},

address = { Cambridge [u.a.] },

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