TY  - BOOK
AU  - HATCH, F.H.
AU  - WELLS, M.K.
AU  - WELLS, A.K.
TI  - TEXTBOOK OF PETROLOGY, Volume I : PETROLOGY OF THE IGNEOUS ROCKS
U1  - 552.1 
PY  - 1984///
CY  - New Delhi
PB  - C.B.S. Publishers and Distrbutors, New Delhi 
ER  -