Cita APA (7a ed.)

Ball, M. J., Fletcher, P., & Crystal, D. (2019). Grammatical profiles: Further languages of LARSP. Multilingual Matters.

Cita Chicago Style (17a ed.)

Ball, Martin J., Paul Fletcher, y David Crystal. Grammatical Profiles: Further Languages of LARSP. Bristol ; Blue Ridge Summit: Multilingual Matters, 2019.

Cita MLA (8a ed.)

Ball, Martin J., et al. Grammatical Profiles: Further Languages of LARSP. Multilingual Matters, 2019.