by Abdullah Effendi Kardus., At head of title: Confidential., Main Heritage Shelves General, BX2320 .C87 1930, Book, Item-ID: i23451828, BIB-ID: 2504270
by Stella Court Treatt, with sixty-three illustrations from photographs., Includes index., Main Heritage Shelves General, DT155.2.B34 T74 1930, Book, Item-ID: i10181738, BIB-ID: 1019809
by Constance E. Padwick., Main Heritage Shelves General, BX5199.G3 P3 1930, Book, Item-ID: i10185367, BIB-ID: 1020172, "List of publications by W.H.T. Gairdner": p. 327-330.