एपीए उद्धरण

Catherine Walter. (1998). The new Cambridge English course (Student book and practice book); T1. Nxb. Tp. HCM,Tp. HCM.

शिकागो स्टाइल उद्धरण

Catherine Walter. The New Cambridge English Course (Student Book and Practice Book); T1. Nxb. Tp. HCM,Tp. HCM, 1998.

एमएलए उद्धरण

Catherine Walter. The New Cambridge English Course (Student Book and Practice Book); T1. Nxb. Tp. HCM,Tp. HCM, 1998.