Nelson, Alexander. <br/><br/>
Introductory botany 
Alexander Nelson. 
 - Waltham, Mass. :  Chronica Botanica Co.,  1949 
 - viii, 479 p. :  ill.   22 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Botany.
<br/><br/><label>Dewey Class. No.: </label>580