Wulff, E.V. . <br/><br/>
An Introduction to Historical Plant Geography /  Textual Documents 
E.V. Wulff. 
 - 1st ed. / 
 - U.S.A. :  Chronica Botanica Co. ,  1950. 
 - xv,223p. :  ill ;  26cm . 
<br/><br/>Index 
<br/><br/><label>ISBN: </label> HB 
<br/><br/><label>Subjects--Index Terms: </label>Botany Plants-Geographical distribution G-Botany 
<br/><br/><label>Dewey Class. No.: </label>581.9  / W 956 In