The prehistoric rock art of Argyll.

von Morris, Ronald W. B.
Poole : Dolphin Press, 1977.
Umfang/Format: 128 S. : Abb. ; 23 cm.

The prehistoric rock art of Galloway and the Isle of Man

von Morris, Ronald W. B.
Poole : Blandford Press, 1979.
Umfang/Format: 193 S. : Abb. ; 24 cm.

The prehistoric rock art of southern Scotland (except Argyll and Galloway)

von Morris, Ronald W. B.
BAR British series ; 86
Oxford : British Archaeological Reports, 1981.
Umfang/Format: 187 p. : ill. ; 30 cm.

Cup-and-ring mark dating.

von Morris, Ronald W. B.
Veröffentlicht in Glasgow Archaeological Journal, 16 (1989/90)
1989/90.
Umfang/Format: 85-86.