19 pages, 11 unnumbered page : illustrations ; 28 cm
OCLC
ocm22186863
"June 1990"
Cover title.
Authors: John H. Andrews, Robin F. Harris, Craig S. Smith, Tara Chand.
Prepared for Department of the Army, US Army Corps of Engineers ; monitored by Environmental Laboratory, US Army Engineer Waterways Experiment Station.
At head of title: Aquatic Plant Control Research Program.