TY  - BOOK
AU  - Williams,Howel
AU  - Turner,Francis J.
AU  - Gilbert,Charles M.
TI  - Petrography: an introduction to the study of rocks in thin sections 
SN  - 0716713764
AV  - QE 434 .W73 1982
U1  - 552 19
PY  - 1982///
CY  - San Francisco
PB  - W.H. Freeman
KW  - Petrology
KW  - Thin sections (Geology)
N1  - Includes bibliographical references and indexes
ER  -