Potonie, Robert,    1889- <br/><br/>
Synopsis der Gattungen der Sporae dispersae /    
Robert Potonie 
 - Hannover :   Amt  fur Bodenforschung,   1956-1960 
 - 3 v. :    plates ;    24 cm. 
 - Beihefte zum Geologischen Jahrbuch ;   Heft 23, 31, 39 .
<br/><br/>Includes bibliographical references 
<br/><br/>Contents.- T. 1. Sporites 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Spores (Botany)--------
<br/><br/><label>Dewey Class. No.: </label>581.46 POT