Description
Item Description:"July 1973."
"Research supported by Navigation Division, Dept. of the Army, Portland District, Corps of Engineers contract number DACW57-73-C-0089, and Division of Environmental Systems and Resources, Research Applications Directorate, National Science Foundation grant GI-34346."
Physical Description:133 pages : illustrations, 1 map ; 28 cm.
Bibliography:Bibliography: pages 72-73.