TY  - GEN
AU  - Jerram, Dougal 
TI  - Field description of igneous rocks
T2  - The geological field guide series
SN  - 9780470022368
PY  - 2011///
CY  - Sussex
PB  - Wiley-Blackwell
KW  - Igneous rocks - Identification
KW  - Geology - Field work
ER  -