Παραπομπή σε μορφή APA (7η εκδ.)

Price, P. J., & Urquieta, X. (2005). Achieving competency in english: Life skills approach (Second edition.). University of Michigan Press.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Price, Planaria J., και Xavier Urquieta. Achieving Competency in English: Life Skills Approach. Second edition. Ann Arbor: University of Michigan Press, 2005.

Παραπομπή σε μορφή MLA (9th εκδ.)

Price, Planaria J., και Xavier Urquieta. Achieving Competency in English: Life Skills Approach. Second edition. University of Michigan Press, 2005.