Holmes, J. (1992). An introduction to sociolinguistics. Longman.
Chicago Style (17th ed.) ZitazioaHolmes, Janet. An Introduction to Sociolinguistics. Harlow Essex: Longman, 1992.
MLA (9th ed.) ZitazioaHolmes, Janet. An Introduction to Sociolinguistics. Longman, 1992.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.