Wassink, E. C. <br/><br/>
Some recent observations on Digitalis purpurea L. f. Heptandra de Chamisso 

 - Wageningen :  Veenman & Zonen,  1972 
 - 18 p.  ; 27 láms. 
 - Mededelingen Landbouwhogeschool  ; 72-22 .
 - Mededelingen Landbouwhogeschool  ; 72-22 .
<br/><br/><label>LCCN: </label>53032 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Digitalis purpurea.