Weldon, L. W. (Lyle W.), 1934-  Weldon, L. W. (Lyle W.), 1934- <br/><br/>
Common aquatic weeds / 
by L.W. Weldon, R.D. Blackburn, and D.S. Harrison. 
 - New York :  Dover,  1973. 
<br/><br/> An unabridged and unaltered republication of Agriculture Handbook, no. 352.  Originally published in 1969 by the Agricultural Research Service of the U.S. Dept. of Agriculture. 
<br/><br/>Bibliography: p. 43. 
<br/><br/><label>LCCN: </label>73076598 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Aquatic weeds.