Sporne, K.R <br/><br/>
The morphology of gymnosperms  the structure and evolution of primitive seed-plants 

 - 2d ed 
 - London  Hutchinson  1974 
 - 216 p.  Illustration 
<br/><br/><label>ISBN: </label>0090771524 
<br/><br/><label>Subjects--Topical Terms: </label><br/>BOTANY
<br/><br/><label>Dewey Class. No.: </label>585.044  / SPO