01387aam 2200385I 450 991071024440332120160309011334.0GOVPUB-C13-9541f781c6c01faa704ef9fedf95946b(CKB)5470000002476844(OCoLC)944187853(EXLCZ)99547000000247684420160309d1979 ua 0engrdacontentrdamediardacarrierProceedings, Federal Workshop on Excavation Safety, September 19 and 20, 1978 /Lawrence A. Salomone; Felix Y. YokelGaithersburg, MD :U.S. Dept. of Commerce, National Institute of Standards and Technology,1979.1 online resourceNBSIR ;79-19351979.Contributed record: Metadata reviewed, not verified. Some fields updated by batch processes.Title from PDF title page.Includes bibliographical references.Salomone Lawrence A1398190Salomone Lawrence A1398190Yokel Felix Y1386442United States.National Bureau of Standards.NBSNBSGPOBOOK9910710244403321Proceedings, Federal Workshop on Excavation Safety, September 19 and 20, 19783503694UNINA