APA (7th ed.) Citation

ProQuest (Firm), Doughty, C., & Long, M. H. (2003). The handbook of second language acquisition. Blackwell Pub..

Chicago Style (17th ed.) Citation

ProQuest (Firm), Catherine Doughty, and Michael H. Long. The Handbook of Second Language Acquisition. Malden, MA: Blackwell Pub., 2003.

MLA (9th ed.) Citation

ProQuest (Firm), et al. The Handbook of Second Language Acquisition. Blackwell Pub., 2003.