Cita APA (7a ed.)

Nation, I. S. P. (2001). Learning vocabulary in another language (1st published.). University Press.

Cita Chicago Style (17a ed.)

Nation, I. S. P. Learning Vocabulary in Another Language. 1st published. Cambridge [etc.]: University Press, 2001.

Cita MLA (9a ed.)

Nation, I. S. P. Learning Vocabulary in Another Language. 1st published. University Press, 2001.