Dyfyniad APA

Lees, G. (1983). Negotiable in English: Student's book. Harrap Ltd.

Dyfyniad Arddull Chicago

Lees, Gerald. Negotiable in English: Student's Book. London: Harrap Ltd, 1983.

Dyfyniad MLA

Lees, Gerald. Negotiable in English: Student's Book. Harrap Ltd, 1983.

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