APA (7th ed.) Citation

Gass, S. M. (1989). Variation in second language acquisition: [selected papers presented at the XIth Michigan Conference on Applied Linguistics held october 7 - 9, 1987 at the Univercity of Michigan in Ann Arbor]. Multilingual Matters.

Chicago Style (17th ed.) Citation

Gass, Susan M. Variation in Second Language Acquisition: [selected Papers Presented at the XIth Michigan Conference on Applied Linguistics Held October 7 - 9, 1987 at the Univercity of Michigan in Ann Arbor]. Clevedon <<[u.a.]>>: Multilingual Matters, 1989.

MLA (9th ed.) Citation

Gass, Susan M. Variation in Second Language Acquisition: [selected Papers Presented at the XIth Michigan Conference on Applied Linguistics Held October 7 - 9, 1987 at the Univercity of Michigan in Ann Arbor]. Multilingual Matters, 1989.