APA (7th ed.) Citation

Long, M. H. (2007). Problems in SLA. Lawrence Erlbaum Associates.

Chicago Style (17th ed.) Citation

Long, Michael H. Problems in SLA. Mahwah, N.J.: Lawrence Erlbaum Associates, 2007.

MLA (9th ed.) Citation

Long, Michael H. Problems in SLA. Lawrence Erlbaum Associates, 2007.