Fifth Conference on Clay Mineralogy and Petrology in Praha: dedicated to the 50th anniversary of the Faculty of Natural Sciences, Charles University, September 14-15, 1970 /   
Compiled  by Charles University. 
 - Praha,  Universita Karlova,  1972. 
 - 160 p. :   il. ;   23,5 cm. 
 - Universitas Carolina Pragensis. Geologica .
 - Geologica. .
<br/><br/> English, Czech, and German. 
<br/><br/>Includes bibliographies. Cab. port.: Universitas Carolina Pragensis. 
<br/><br/><label>LCCN: </label>74164546  
<br/><br/><label>Nat. Bib. No.: </label>Cz*** 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Clay minerals--Congresses.<br/>Clay--Congresses.<br/>Congresos--Congreso<br/>Minerales arcillosos<br/>Rocas arcillosas<br/>Arcillas<br/>Petrologia<br/>Minas<br/>Geologia<br/>z3950.loc.gov:7090/Voyager USA-Library Of Congress