Y bryniau tywyll y cymylau trymion : dehongliad o dirwedd Cymru mewn peintiadau gan Josef Herman ... [et al.] = The dark hills the heavy clouds : an expression of the Welsh landscape in paintings by Josef Herman ... [et al.].
Jenkins, David Fraser.
Herman, Josef,1911-2000.
Welsh Arts Council.
Cardiff : Welsh Arts Council,
c1981.
Exhibition catalogue.
Landscape painting, European