TY  - BOOK
AU  - 
TI  - Extract from Colombo Plan Report on airborne magnetometer and scintillation counter survey over parts of Perak, Selangor & Negeri Sembilan ( Area 1 )
PY  - 1959///
CY  - Perak: 
PB  - Geological Survey Ipoh, Ministry of Natural Resources, Federated of Malaya,  
ER  -