TY  - BOOK
AU  - Nockolds S R
AU  -  Knox R W O'B
TI  - Petrology for students
SN  - 0521291844 (pbk)
U1  - H2, L8;1 
PY  - 1978///
CY  - London
PB  - Cambridge University Press       
KW  -  Petrology
KW  - Geology
N1  - Includes bibliographical references.; Index 427-435p
ER  -