APA-viite

Gouhh, C., & Chris Gough. (2010). Ielts target 5.0: Preparation for IELTS : leading to IELTS academic : course book. Tp. Hồ Chí Minh: Tổng hợp Tp. Hồ Chí Minh,Công ty TNHH Nhân Trí Việt.

Chicago-tyylinen lähdeviittaus

Gouhh, Chris, ja Chris Gough. Ielts Target 5.0: Preparation for IELTS : Leading to IELTS Academic : Course Book. Tp. Hồ Chí Minh: Tổng hợp Tp. Hồ Chí Minh,Công ty TNHH Nhân Trí Việt, 2010.

MLA-viite

Gouhh, Chris, ja Chris Gough. Ielts Target 5.0: Preparation for IELTS : Leading to IELTS Academic : Course Book. Tp. Hồ Chí Minh: Tổng hợp Tp. Hồ Chí Minh,Công ty TNHH Nhân Trí Việt, 2010.

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