Rannsachadh

  • The Gaelic Sources of MacPherson’s Ossian (1952)
  • Edward Lhuyd in the Scottish Highlands (1963), còmhla ri Iain Latharna Caimbeul
  • The New Verse in Scottish Gaelic: a structural analysis (1974)
  • An Introduction to Gaelic Poetry (1974)
  • Alasdair Mac Mhaighstir Alasdair: His Political Poetry (1989)

Mar neach-deasachaidh

  • Branwen Uerch Lyr (1961)
  • The Companion to Gaelic Scotland (1983)
  • Bardachd na Roinn-Eorpa an Gaidhlig (1990)
  • The MacDiarmid MS Anthology (1992)
  • Gaelic Poetry in the Eighteenth Century (1993)
  • Alasdair Mac Mhaighstir Alasdair: Selected Poems (1996)