Cita APA (7th ed.)

Trudgill, P., & Hannah, J. (2002). International English: A guide to varieties of standard English (4th ed.). E. Arnold.

Cita Chicago (17th ed.)

Trudgill, Peter, i Jean Hannah. International English: A Guide to Varieties of Standard English. 4th ed. London: E. Arnold, 2002.

Cita MLA (9th ed.)

Trudgill, Peter, i Jean Hannah. International English: A Guide to Varieties of Standard English. 4th ed. E. Arnold, 2002.