AGARD flight test instrumentation series : In-flight temperature measurements / by F. Trenkle and M. Reinhardt ; ed. by W.D. Mace and A. Pool / … direction of war : a study of strategy / by W.D. Bird Spares List Norton 490 cc. side valve model W.D. machine Hulp verlenen aan oorlogsgetroffenen : over signalering, opvang en begeleiding / red. S.G. van der Veen, W.D. Visser
