University of Pennsylvania Press

ペンシルベニア州 Commonwealth of Pennsylvania 州の愛称: 礎石の州 The Keystone State ペンシルベニア州（ペンシルベニアしゅう、英: Commonwealth of Pennsylvania、 [ˌpɛnsɪlˈveɪnjə] (

1204–1453. University of Pennsylvania Press. pp. 26–27. ISBN 978-0-8122-1620-2  ^ a b Spinei, Victor (2009). The Romanians and the Turkic Nomads North of the

Third Millennium B.C.: Revised Edition, Philadelphia, Pennsylvania: University of Pennsylvania Press, ISBN 0-8122-1047-6, http://www.sacred-texts.com/ane/sum/ 

Currents in an Age of Transition. University of Pennsylvania Press. ISBN 0-8122-3508-8  Wolfram, Herwig (2006). Conrad II, 990–1039: Emperor of Three Kingdoms

ISBN 0-674-88490-6。 Mark Hain: Pennsylvania Academy of the Fine Arts: 200 Years of Excellence. University of Pennsylvania Press, Philadelphia, 2005, ISBN 978-0-943836-24-9