Understanding the Earth  a reader in the earth sciences 
edited by I. G. Gass, Peter J. Smith and R. C. L. Wilson 
 - Cambridge  MIT Press  1971 
 - 353p. 
<br/><br/><label>ISBN: </label>0-262-0-7040-7 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astronomy and Astrophysics Thesaurus<br/>Geology
<br/><br/><label>Universal Decimal Class. No.: </label>550  / GAS