Dellar, H., & Walkley, A. (2018). Outcomes: Elementary student's book. Vietnam: National Geographic Leanrning; Cengage Learning Vietnam Company Limited.
Čikaški stil citiranjaDellar, Hugh, i Andrew Walkley. Outcomes: Elementary Student's Book. Vietnam: National Geographic Leanrning; Cengage Learning Vietnam Company Limited, 2018.
MLA način citiranjaDellar, Hugh, i Andrew Walkley. Outcomes: Elementary Student's Book. Vietnam: National Geographic Leanrning; Cengage Learning Vietnam Company Limited, 2018.
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