field manual Field artillery : forward observation field manual Field fortifications / prepared under direction of the chief of engineers field manual Corps of engineers : field fortifications field manual Tents and tent pitching field manual Armored engineer battalion Handleiding voor chauffeurs en ordonnansen in militairen dienst / samengest. door J.C. Beuks ; met medew. van P.J. Teebaal field manual Reference data / prepared under direction of the chief of engineers field manual Engineer troops field manual Operations of engineer field units field manual Corps of engineers : construction and routes of communication field manual Military police in towns and cities field manual Air navigation / prepared under direction of the chief of the air corps