Kremp,G.O.W <br/><br/>
Catalog of fossil spores and pollen.II.Mesozoic and Tertiary spores and pollen 

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 - Pennsylvania - EEUU  pennsylvania State University  1957 
 - 171p.   
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<br/><br/><label>ISBN: </label>no 
<br/><br/><label>Subjects--Topical Terms: </label>--Polen fosiles--Esporas fosiles--Mesozoico--Terciario--Paleontologia--<br/>Geologia