Eicher, Don L. <br/><br/>
Geologic time / 
[by] Don L. Eicher. 
 - Englewood Cliffs, N.J. :  Prentice-Hall, Inc.,  c1968. 
 - viii, 149 p. :  ill. ;  23 cm. 
 - Foundation of earth science series .
<br/><br/> Includes index. 
<br/><br/>Bibliography: 143 - 145. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geological time.