Verdun to the Vosges : impressions of the war on the fortress frontier of France / G. Campbell Charleroi : notes et impressions / Fleury-Lamure ; préf. de Gérald Campbell My mystery ships / by Gordon Campbell ; with a forew. by Lewis Bayly ; ill. by J.E. Broome Aces and aircraft of World War 1 / Christopher Campbell ; illustrated by the author and John W. Wood Verbandpakfoedraal zonder inhoud, Verenigde Staten van Amerika (model 1910)
