Collier's new photographic history of the world's war : including sketches, drawings and paintings made by artists at the front / Photographs by the official … Ooggetuigen van de Eerste Wereldoorlog / Wim van de Hulst & Koen Koch ; [voorw. Piet Chielens] Eerste Wereldoorlog in foto's / door J.H.J. Andriessen ; [red.: Studio Imago, Elze Mulder ... et al.]