Rigg, J. B. <br/><br/>
A textbook of environmental study for school scientists / 
illustrations by the author except where otherwise indicated. 
 - [2nd ed.]. 
 - London :  Constable,  [1968] 
<br/><br/>Bibliography: p. [287]-290. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Earth sciences.