Gnadinger, C B. <br/><br/>
Pyrethrum flowers / 

 - 2nd ed.  supplement edition 
 - Minnesota :  McLaughlin Gormley King Co,  1945. 
 - xiv, 690 p. :  ill. ;  23 cm. 
<br/><br/> Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>9788176220583 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Natural insecticides<br/>Botanical pesticides<br/>Economic botany
<br/><br/><label>Dewey Class. No.: </label>632.951  / GNA