TY  - BOOK
AU  - Howell Williams
AU  -  Francis J. Turner  Charles M. Gilbert
TI  - Petrography : An introdution to the study of rocks in thin sections
U1  - 552.8 
PY  - 1954///
CY  - Bombay
PB  - Vakils Feffer And Simons Pvt Limited
N1  - Howell Williams; Francis J. Turner & Charles M. Gilbert: Petrography : An introdution to the study of rocks in thin sections.  Bombay.  Vakils Feffer And Simons Pvt Limited, 1954.--(552.8WIL)
ER  -