Problems of the nations
Bobbs-Merrill
by Amos S. Hershey and Susanne W. Hershey
Bobbs-Merrill c1919 Problems of the nations
所蔵館22館
by Paul Leland Haworth
Bobbs-Merrill Co. c1915 Problems of the nations
所蔵館1館
by Agnes C. Laut
Bobbs-Merrill c1915 Problems of the nations
所蔵館8館