Ordnance Survey Scotland Soil Survey Series.
Great Britain.Ordnance Survey.
Southampton : Ordnance Survey,
[1960's-1970's].
Relief shown by contour lines.
Scotland: Soil Survey 1:25,000 Dyeline prints ND15-NX06; Soil Leaching, Land Capability for Agriculture, 1:63,360 & 1:50,000 based on 7th series, ca.1963-1979; Macaulay Institute 2003.
refer to: C18(20), C18(29), C18(29A), C18(29B).
refer to: 66:A (R. Hellyer: 1999).