एपीए उद्धरण

Nguyen, T. N., & Hanoi National university of education. Faculty of English. (2011). Speaking 1. H: University of education publishing house.

शिकागो स्टाइल उद्धरण

Nguyen, Thuy Nga, और Hanoi National university of education. Faculty of English. Speaking 1. H: University of education publishing house, 2011.

एमएलए उद्धरण

Nguyen, Thuy Nga, और Hanoi National university of education. Faculty of English. Speaking 1. H: University of education publishing house, 2011.