Symposium on stratiphical palynology. Luknow, December,1971. <br/><br/>
Proceedings 

 - Luknow  Birbal Sahni Institute of Paleobotany  1974 
 - vi,132p.;  25cm.- 
 - Birbal Sahni Institute of Paleobotany,special publication; no.3 .
<br/><br/><label>Dewey Class. No.: </label>560.17  / SYM