Dugald Campbell., "Printed in Great Britain.", "Writers consulted": p. 11., Main Heritage Shelves General, DT55 .C25 1935, Book, Item-ID: i10069495, BIB-ID: 1008585
von Dr. Alfons Gabriel ; unter mitarbeit von Frau Agnes Gabriel-Kummer, Main Heritage Shelves General, DS258 .G33 1935, Book, Item-ID: i25324585, BIB-ID: 2711847
Part I. The land -- part. II. The people and their work., E. M. Sanders, Main Heritage Shelves General, DS107.4 .S26 1935, Book, Item-ID: i1586392x, BIB-ID: 1022042
with an introduction and notes by Sir E. Denison Ross., Published from the unique manuscript preserved in the Bodleian Library., Main Heritage Shelves General, DS257 .S75 1935, Book, Item-ID: i25323970, BIB-ID: 2648429