Vaarma, Marku <br/><br/>
Kyyjarvi-Perho kartta-alueen kalliopera / 
Marku Vaarma ja Fredrik Pipping. 
 - Espoo:   Geological Survey of Finland,   Geologian tutkimuskeskus  2003.  
 - 7-54 p. :  ill., maps, tables ;  25 cm. 
<br/><br/>Includes bibliographical references (p. 53-54). 
<br/><br/><label>ISBN: </label>9516908799 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Rocks--Finland
<br/><br/><label>Dewey Class. No.: </label>552.0948