Rishworth D.
Iron Ore Cha'ah Distrist No. Rept.: EG/MI/Joh D. Rishworth - 1st. ed - Ipoh, Perak Geological Survey of Malaysia 1959 - 22p ill, Plates of map, tables of figs 29 cm
Propecting for Iron Ore--Cha'ah District--West Malaysia
Iron Ore Cha'ah Distrist No. Rept.: EG/MI/Joh D. Rishworth - 1st. ed - Ipoh, Perak Geological Survey of Malaysia 1959 - 22p ill, Plates of map, tables of figs 29 cm
Propecting for Iron Ore--Cha'ah District--West Malaysia