Thomas J. Elpel <br/><br/>
Botany in a Day  The Patterns Method of Plant Identification  An Herbal Field Guide to Plant Families of North America 

 - Montana  Hops Press  1967 
<br/><br/><label>ISBN: </label>978-1892784353 
<br/><br/><label>Dewey Class. No.: </label>500ELPB