Cita APA (7a ed.)

Williams, J. D., & Snipper, G. C. (1990). Literacy and bilingualism. Longman.

Cita Chicago Style (17a ed.)

Williams, James Dale, y Grace Capizzi Snipper. Literacy and Bilingualism. New York [etc.]: Longman, 1990.

Cita MLA (9a ed.)

Williams, James Dale, y Grace Capizzi Snipper. Literacy and Bilingualism. Longman, 1990.