Johansen, Donald Alexander,  1901-, <br/><br/>
Plant embryology :  Embryogeny of the spermatophyta. 

 - 305 páginas 
 - A new series of plant science books ;   24 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Embriología vegetal
<br/><br/><label>LC Class. No.: </label>QK665  / J6