Evans, I. O. <br/><br/>
The observer's book of geology / 
by I.O. Evans ; foreword by Prof. H.L. Hawkins. 
 - London :  Frederick Warne,  [19-?]. 
 - 272 p. : ill. 
 - The observer's pocket series .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology--Great Britain.<br/>Geology.