Unknown <br/><br/>
Journal of the Washington academy of sciences Volume 25 

 -  Washington academy of sciences,450 Ahnaip St.,At Menasha,Wisconsin  1935 
 - 587p. : ill ; 25 cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Plants
<br/><br/><label>Universal Decimal Class. No.: </label>106  / E20