APA (7th ed.) Citation

Eisenstein, M. R. (1989). The Dynamic interlanguage: Empirical studies in second language variation. Plenum Press.

Chicago Style (17th ed.) Citation

Eisenstein, Miriam R. The Dynamic Interlanguage: Empirical Studies in Second Language Variation. New York: Plenum Press, 1989.

MLA (9th ed.) Citation

Eisenstein, Miriam R. The Dynamic Interlanguage: Empirical Studies in Second Language Variation. Plenum Press, 1989.