HATCH, F.H. WELLS, M.K. WELLS, A.K. <br/><br/>
TEXTBOOK OF PETROLOGY, Volume I : PETROLOGY OF THE IGNEOUS ROCKS 

 - New Delhi  C.B.S. Publishers and Distrbutors, New Delhi   1984 
<br/><br/><label>Dewey Class. No.: </label>552.1  / WEL/TE