Wolfenden, E. B.
The geology and mineral resources of the lower Rajang Valley and adjoining areas, Sarawak E. B. Wolfenden - 1960 - xiii, 167 p. ill.,maps,photos 30 cm+ 1 map
A coloured geological map on a scale of 1:250,000 is in the pocket inside the back cover
Mineral resources--Sarawak
The geology and mineral resources of the lower Rajang Valley and adjoining areas, Sarawak E. B. Wolfenden - 1960 - xiii, 167 p. ill.,maps,photos 30 cm+ 1 map
A coloured geological map on a scale of 1:250,000 is in the pocket inside the back cover
Mineral resources--Sarawak