Cita APA

Aitken, R. (1992). Teaching tenses: Ideas for presenting and practising tenses in english. NelSon, U.K: [s.n].

Citación estilo Chicago

Aitken, Rosemary. Teaching Tenses: Ideas for Presenting and Practising Tenses in English. NelSon, U.K: [s.n], 1992.

Cita MLA

Aitken, Rosemary. Teaching Tenses: Ideas for Presenting and Practising Tenses in English. NelSon, U.K: [s.n], 1992.

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