Surdam, David. George Century of the leisured masses : entertainment and the transformation of twentieth-century america/ byDavid George Surdam - Oxford University Press : London, 2015. ISBN: 9780190211608 Subjects--Topical Terms: Economics and FinanceEconomic History LC Class. No.: http://www.oxfordscholarship.com/view/10.1093/acprof:oso/9780190211561.001.0001/acprof-9780190211561?rskey=brttMu&result=61