Cita APA (7a ed.)

Bayley, R. J., & Preston, D. R. (1996). Second language acquisition and linguistic variation. John Benjamins.

Cita Chicago Style (17a ed.)

Bayley, Robert James, y Dennis Richard Preston. Second Language Acquisition and Linguistic Variation. Amsterdam [etc.]: John Benjamins, 1996.

Cita MLA (9a ed.)

Bayley, Robert James, y Dennis Richard Preston. Second Language Acquisition and Linguistic Variation. John Benjamins, 1996.