Playford, Geoffrey <br/><br/>
Miospores from the Mississippian Horton Group, eastern Canada 

 - Ottawa  Dept. of Mines and Technical Surveys, Canada  1964 
 - 47p.  25cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Spores (Botany), Fossil
<br/><br/><label>LC Class. No.: </label>PAM QE185.A43 no.107