TY  - BOOK
AU  - Weinschenk,Ernst
AU  - Clark,Robert Watson
TI  - Petrographic methods: the authorized English translation of Part I, Anleitung zum Gebrauch des Polarisationsmikroskops (3d. rev. ed.) and Part II, Die gesteinbildenden Mineralien (2d. rev. ed.) 
AV  - QE431 WEI 
PY  - 1912///
CY  - New York, London
PB  - McGraw-Hill Book Company
KW  - Mineralogy
KW  - Petrology
KW  - Microscopy
N1  - Includes index
ER  -