A guide to stratigraphical procedure 
by A. Whittaker ... (et al.) 
 - London  The Geological Society  1992 
 - 1 v. (various pagings) ; 29 cm. 
 - Geological Society special report  no. 20 .
<br/><br/><label>ISBN: </label>0903317745  RM12.30 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology, Stratigraphic