Cita APA (7a ed.)

Tarone, E. (1988). Variation in interlanguage. Edward Arnold.

Cita Chicago Style (17a ed.)

Tarone, Elaine. Variation in Interlanguage. London [etc.]: Edward Arnold, 1988.

Cita MLA (9a ed.)

Tarone, Elaine. Variation in Interlanguage. Edward Arnold, 1988.