The boreal lower cretaseous :  the proceedings of an International Symposium / 
edited by R. Casey and P. F. Rawson 
 - Liverpool :  Seel House Press,  1973 
 - 447 p. :  ill. ;  25 cm. 
 - Geological journal special issues ;  5 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology, Stratigraphic--Cretaseous--Congresses