Lessons Learned, 159th Engineer Group (Construction) Open PDF Document Details Document Type Technical Report Publication Date Nov 20, 1971 Accession Number AD0907855 Entities Organizations Adjutant General's Corps Tags DTIC Thesaurus Topics Concrete Construction Dump Trucks Engineers Inventory Control Lessons Learned Materials Observation Physical Security Precast Concrete Production Rate Security Small Arms Test And Evaluation Truck Convoys United States