TY  - BOOK
AU  - Johannsen,Albert,1871-1962
TI  - Manual of petrographic methods
PY  - 1968///
CY  - New York
PB  - Hafner Publishing Company
KW  - Petrology
KW  - Optical mineralogy
N1  - Reprint of the 2d ed., published in 1918; Includes bibliographical references
ER  -