TY  - BOOK
AU  - Wilford,G.E.
AU  - Khoo,C.H.
ED  - Malaysia.
TI  - Penrissen area, West Sarawak, Malaysia: explanation of sheets 1-110-2, 1-110-13, and 1-110-14 
PY  - 1965///
CY  - Kuching
PB  - Government Printing Office
KW  - Sarawak
N1  - A coloured geological map is in the pocket inside the back cover
ER  -