Nelson, William R. <br/><br/>
Entrainment of ichthyoids plankton by irrigation with drawl systems / 
William R. Nelson and Lance G. Backman 
 - Washington, D. C. :  United States Government Printing Office,  1978 
 - viii, 29 p. ;  28 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Freshwater algae--United States<br/>Freshwater phytoplankton--United States<br/>Algae--United States
<br/><br/><label>Dewey Class. No.: </label>333.9100973