Citazione APA

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

Stile di citazione Chicago

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

Citazione MLA

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

Attenzione: Queste citazioni potrebbero non essere precise al 100%.