Gaya APA

Richards, Jack C.. (1978). Error analysis : perspectives on second language acquisition . London: Longman.

Gaya Chicago

Richards, Jack C.. Error analysis : perspectives on second language acquisition. London: Longman, 1978. Text.

Gaya MLA

Richards, Jack C.. Error analysis : perspectives on second language acquisition. London: Longman, 1978. Text.

Gaya Turabian

Richards, Jack C.. Error analysis : perspectives on second language acquisition. London: Longman, 1978. Print.