LESSONS LEARNED, HEADQUARTERS, 20TH ENGINEER BRIGADE Open PDF Document Details Document Type Technical Report Publication Date Apr 30, 1968 Accession Number AD0833287 Entities Organizations Adjutant General's Corps Tags Communities of Interest Biomedical DTIC Thesaurus Topics Air Cleaners Air Filters Chaplains Civic Action Civilian Personnel Construction Engineering Engineers Governments Health Services Lessons Learned Medical Personnel Observation Physicians Security Security Personnel Training