Wicander, Reed,  1946- <br/><br/>
Historical geology :  evolution of the earth and life through time / 
Reed Wicander, James S. Monroe. 
 - 2nd ed. 
 - Minneapolis/St. Paul :  West Pub. Co,  c1993. 
 - xxi, 640 p. :  ill. (some col.), col. maps ;  26 cm.