Geology / 
 S236 Geology. 
The Open University. 
 - Milton Keynes :  The Open University Press,  1983. 
 - 4 v. :  ill. ;  30 cm. 
<br/><br/> Science : a second level course. 
<br/><br/> Earth materials --  Internal processes --  Surface processes --  Fossils.  Block 2.  Block 3.  Block 4.  Block 5. 
<br/><br/><label>ISBN: </label>0335161367 0335131375 (Block 3) 0335161383 (Block 4) 0335161391 (Block 5) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Rocks--Identification.<br/>Rocks.<br/>Earth sciences--Textbooks.<br/>Geology--Textbooks.