TY  - BOOK
AU  - HARKER, ALFRED
TI  - STUDENTS FOR PETROLOGY
T2  - 0
U1  - 552 
PY  - 1997///
CY  - U.S.A.
PB  - CAMBRIDGE AT THE UNIV. P.
KW  - CIENCIAS PURAS
N1  - ROCKS-HYPABYSSAL
ER  -