Dyfyniad APA

Leo Jones. (1997). New progress to first certificate self- study student's book. Cambridge Univ. Pressenglish languagetextbooks for foreign speakersAnh ngữ thực hành.

Dyfyniad Arddull Chicago

Leo Jones. New Progress to First Certificate Self- Study Student's Book. Cambridge Univ. Pressenglish languagetextbooks for foreign speakersAnh ngữ thực hành, 1997.

Dyfyniad MLA

Leo Jones. New Progress to First Certificate Self- Study Student's Book. Cambridge Univ. Pressenglish languagetextbooks for foreign speakersAnh ngữ thực hành, 1997.

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