Doolittle, Jerome <br/><br/>
Canyon lands / 
by Jerome Doolittle and the editors of Time-Life Books with photographs by Wolf Von Dem Bussche 
 - Amsterdam :  Time-Life Books,  1974 
 - 184 p. :  ill. (some col.), maps ;  26 cm. 
 - The World's wild places .
<br/><br/>Bibliography: p.100 - Includes index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Canyons--Colorado<br/>Natural history--Colorado