Investigating the earth 
[by] Miles F. Harris [and others] 
 - Rev. ed 
 - Boston  Houghton Mifflin  [1973] 
 - xiii, 529 p  illus  24 cm 
<br/><br/> "Sponsored by the American Geological Institute and based on the original Earth Science Curriculum Project." 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Earth sciences
<br/><br/><label>Dewey Class. No.: </label>550