Sporne, K R <br/><br/>
Morphology of gymnosperms:   The structure and evolution of primitive seed-plants 

 - London:   Hutchinson University Library,   1965 
 - 215p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Gymnosperms
<br/><br/><label>Subjects--Index Terms: </label>Pinaceae 
<br/><br/><label>Universal Decimal Class. No.: </label>582.42  / K5