Lydford, J., & Owen, D. M. (1974). John Lydford's book. H.M. Stationery Off..
Lua i Stíl Chicago (17ú heag.)Lydford, John, agus Dorothy Mary Owen. John Lydford's Book. London: H.M. Stationery Off., 1974.
Lua MLA (8ú heag.)Lydford, John, agus Dorothy Mary Owen. John Lydford's Book. H.M. Stationery Off., 1974.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.