Oliver, Carl <br/><br/>
Our changing world  man, the world, and the social studies 
Carl Oliver, Robert Sobel 
 - Palo Alto, California   Laidlaw Brothers, Publishers  c1969 
 - 728p.:  col., ill.;  25cm 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>0008976543 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geography--Textbooks