The geology and mineral resources of the Kinta Valley, Perak /
by F. T. Ingham and E. F. Bradford
- Geological Survey District Memoir 9
- Ipoh: Geological Survey Headquarters, 1960
- xxi.ill. 347 p. (Includes reference and index).- 25.4 cm.- Includes Coloured Geological Maps and sections (Perak: Ipoh sheet 2-N-5 & part of 2-M-8 and Batu Gajah sheet 2-N-9 & part of sheet 2-M-12) .- Scale 1 : 63,360.- 1957. contained in the pocket attached to the back cover.