Isley, Duane <br/><br/>
Weeds in the north central states / 
Duane Isley 
 - Ames,Iowa :  Iowa State University Book Store,  repr. 1975,1976 
 - iv,261 p. :  ill. ;  28 cm. 
<br/><br/> Includes index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Weeds-- Control<br/>Vegetation management