6130
Otto, Norman E
Aquatic pests on irrigation systems: identification guide
)Washington(
U.S. Dept. Of the Interior, Bureau of Racla mation; For sale by the Superintendent of Do0mation; U.S. Print Off
1980
vi, 90P.; ill
U. S. Bureau of Reclamtion. A water reources technical publication
Bibliography: p. 89-90
by N.E. Otto, T.R. Bartley and J.S. Thullen. Illustrated by D.W.Cunningham and J.M. Evans
2nd
، Aquatic pests
، Irrigation water
QH
96
.
O88
1980
AU
AU Bartley, Thomas R Joint author
TI
SE
CL
