The linguistic atlas of Scotland.
Mather, J. Y.
Speitel, H. H.
Leslie, G. W.
Mather, I. E.
Linguistic Survey of Scotland.
London : Croom Helm,
c1975-c1986.
Based on the archives of the Scots Section of the Linguistic Survey of Scotland.
Vol. 3 has additional title: Phonology.
Includes bibliographical references and indexes.
Scots language
Linguistic geography