Mt. St. Helens sedimentation study :
fiscal year 1981 status report.
APA Citation
United States. Army. Corps of Engineers. Portland District. (1981). Mt. St. Helens sedimentation study: fiscal year 1981 status report. [Portland, Ore.: United States Army Corps of Engineers, Portland District.
MLA Citation
United States. Army. Corps of Engineers. Portland District. Mt. St. Helens Sedimentation Study: Fiscal Year 1981 Status Report. [Portland, Ore.: United States Army Corps of Engineers, Portland District, 1981.
Warning: These citations may not always be complete (especially for serials).