APA citiranje

Ruth Gairns. (2002). Natural english (intermediate student's book). Oxford, NY: Oxford Univ. Press.

Trích dẫn kiểu Chicago

Ruth Gairns. Natural English (intermediate Student's Book). Oxford, NY: Oxford Univ. Press, 2002.

MLA citiranje

Ruth Gairns. Natural English (intermediate Student's Book). Oxford, NY: Oxford Univ. Press, 2002.

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