Cita APA (7th ed.)

Holmes, J. (1992). An introduction to sociolinguistics. Longman.

Cita Chicago (17th ed.)

Holmes, Janet. An Introduction to Sociolinguistics. Harlow Essex: Longman, 1992.

Cita MLA (9th ed.)

Holmes, Janet. An Introduction to Sociolinguistics. Longman, 1992.