Gaya APA

Lourdes, O., I.Conrie, B, , , I, C, G, , , , , I. (2009). Understanding Second Language Acquisition (cet 1). London: Hodde Education.

Gaya MLA

Lourdes, Ortega., I.Conrie, Bernard, , , II., Corbett,, Greville, , , , , III.j. "Understanding Second Language Acquisition". cet 1 London: Hodde Education, 2009. Text.