APA (7th ed.) Citation

Faerch, C., Haastrup, K., & Phillipson, R. (1984). Learner language and language learning. Multilingual Matters.

Chicago Style (17th ed.) Citation

Faerch, Claus, Kirsten Haastrup, and Robert Phillipson. Learner Language and Language Learning. Clevendon, Avon (England): Multilingual Matters, 1984.

MLA (9th ed.) Citation

Faerch, Claus, et al. Learner Language and Language Learning. Multilingual Matters, 1984.