Oldroyd, D. R. <br/><br/>
Earth cycles :  a historical perspective / 
David Oldroyd 
 - Westport, Conn. :  Greenwood Press,  2006 
 - xiv, 234 p. :  ill., maps ;  27 cm. 
 - Greenwood guides to great ideas in science .
<br/><br/>Includes bibliographical references (p. [207]-224) and index 
<br/><br/><label>ISBN: </label>0313332290 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geological time<br/>Cycles<br/>Geology--Philosophy<br/>Geology--Periodicity