Cita APA (7a ed.)

Richards, J. C. (1988). Error analysis: Perspectives on second language acquisition (8th imp.). Longman.

Cita Chicago Style (17a ed.)

Richards, Jack C. Error Analysis: Perspectives on Second Language Acquisition. 8th imp. Harlow: Longman, 1988.

Cita MLA (9a ed.)

Richards, Jack C. Error Analysis: Perspectives on Second Language Acquisition. 8th imp. Longman, 1988.