Pammel, L. H.  1862-1931. <br/><br/>
The weed flora of Iowa, 
by L. H. Pammel and Charlotte M. King with collaboration of J. N. Martin, J. C. Gilman, J. C. Cunningham, Ada Hayden F. D. Butcher, D. Porter, R. R. Rothacker ... 
 - Des Moines,  Published by the Iowa Geological survey, by the state of Iowa,  1926. 
 - 4 p. l., 715 p.  incl. illus., tables.  24 cm. 
 - Iowa. Geological survey. Bulletin  no. 4: rev. ed. .
<br/><br/>Bibliography: p. 664-671. 
<br/><br/><label>LCCN: </label>gs 28000074  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Weeds--Iowa.<br/>Flowers--Iowa.
<br/><br/><label>LC Class. No.: </label>SB612.I8  / P2 1926