TY  - BOOK
AU  - Pirsson,L.V.
AU  - Penfield,S.L.
ED  - Asutosh Collection (National Library, India)
TI  - Contributions to mineralogy and petrography from the laboratories of the Sheffield scientific school of Yale university
U1  - 549.082 
PY  - 1901///
CY  - New York
PB  - C. Scribner
KW  - Mineralogy
KW  - Petrology
N1  - Includes index
ER  -