The North Mull Project (4): Excavations at Ardnacross 1989–91

Ruggles C. L. N. and Martlew R. D. , “The North Mull project (1): Excavations at Glengorm 1987–88”. Archaeoastronomy (supplement to Journal for the history of astronomy, no. 14 (1989), S137–49, p. S141.

Ruggles C. L. N. , “The linear settings of Argyll and Mull”, Archaeoastronomy (supplement to Journal for the history of astronomy, no. 9 (1985), S105–32.

Ruggles and Martlew , op. cit. (ref. 76), S147–48.

Ruggles C. L. N. and Martlew R. D. , “The North Mull project (3): Prominent hill summits and their astronomical potential”, Archaeoastronomy (supplement to Journal for the history of astronomy, no. 17 (1992), S1–13, pp. S2–3.

Ritchie J. N. G. , “Excavation of a cairn at Strontoiller, Lorn, Argyll”, Glasgow archaeological journal, ii (1971), 1–7; Ritchie J. N. G. Thornber I. Lynch F. and Marshall D. , “Small cairns in Argyll: Some recent work”, Proceedings of the Society of Antiquaries of Scotland, cvi (1977), 15–38.

Ruggles , op. cit. (ref. 77), Table 3.

Ruggles C. L. N. Martlew R. D. and Hinge P. D. , “The North Mull Project (2): The wider astronomical potential of the sites”, Archaeoastronomy (supplement to Journal for the history of astronomy, no. 16 (1991), S51–75, p. S69.

Ruggles and Martlew , op. cit. (ref. 79), S7.