Holmes, J. (1992). An introduction to sociolinguistics. Longman.
Lua i Stíl Chicago (17ú heag.)Holmes, Janet. An Introduction to Sociolinguistics. Harlow Essex: Longman, 1992.
Lua MLA (9ú heag.)Holmes, Janet. An Introduction to Sociolinguistics. Longman, 1992.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.