Cita APA (7a ed.)

Appel, R., & Muysken, P. (1987). Language contact and bilingualism. E. Arnold.

Cita Chicago Style (17a ed.)

Appel, Rene, y Pieter Muysken. Language Contact and Bilingualism. London: E. Arnold, 1987.

Cita MLA (9a ed.)

Appel, Rene, y Pieter Muysken. Language Contact and Bilingualism. E. Arnold, 1987.