Sporne, K. R. <br/><br/>
The Morphology of Gymnosperms : 
The Structure and Evolution of Primitive Seed-Plants 
 - London  Hutchinson University Library  1965 
 - 214 
<br/><br/><label>ISBN: </label>9383692308 
<br/><br/><label>Subjects--Personal Names: </label> Zoology 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Zoology