Styl cytowania APA

Alexander, L. (1987). Developing Skills. An Intergrated Course for Intermediate Students ( New Concept English). TP.HCM: Đại học Tổng hợp.

Styl cytowania Chicago

Alexander, L.g. Developing Skills. An Intergrated Course for Intermediate Students ( New Concept English). TP.HCM: Đại học Tổng hợp, 1987.

Styl cytowania MLA

Alexander, L.g. Developing Skills. An Intergrated Course for Intermediate Students ( New Concept English). TP.HCM: Đại học Tổng hợp, 1987.

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