by W. Ewing : with foreword by the Very Rev. Adam Philip : eight illustrations on art paper., Main Heritage Shelves General, BV3202.P32 E95 1930, Book, Item-ID: i10160358, BIB-ID: 1017671
by Harry Emerson Fosdick., Includes indexes., Main Heritage Shelves General, DS107.3 .F67 1930, Book, Item-ID: i10042611, BIB-ID: 1006064, Includes bibliographical references (p. 295-297).
by Charles J. Rosebault., Maps on lining-papers., Main Heritage Shelves General, D198.4.S2 R67 1930, Book, Item-ID: i10173432, BIB-ID: 1018979, "Principal sources": p. 305.
by Abdullah Effendi Kardus., At head of title: Confidential., Main Heritage Shelves General, BX2320 .C87 1930, Book, Item-ID: i23451828, BIB-ID: 2504270