Guennel, Gottfried Kurt,  1920- <br/><br/>
Miospore analysis of the Pottsville coals of Indiana. 

 - Bloomington,  1958. 
 - 101p.  illus.,6 plates,maps,diagrs.,tables.  23 cm. 
 - Indiana. Geological Survey. Bulletin  no. 13 .
<br/><br/>Bibliography: p.87-89. 
<br/><br/><label>LCCN: </label>gs 59000191  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Coal--Indiana.<br/>Plant spores.<br/>Paleobotany--Carboniferous.<br/>Paleobotany--Indiana.
<br/><br/><label>LC Class. No.: </label>QE109  / .A32 no. 13 
<br/><br/><label>Dewey Class. No.: </label>561.13097724