Cita APA (7a ed.)

Abbs, B., Freebairn, I., & Barker, C. (2001). Snapshot. Pre-Intermediate: Students book (8 ed.). Pearson.

Cita Chicago Style (17a ed.)

Abbs, Brian, Ingrid Freebairn, y Chris Barker. Snapshot. Pre-Intermediate: Students Book. 8 ed. London: Pearson, 2001.

Cita MLA (8a ed.)

Abbs, Brian, et al. Snapshot. Pre-Intermediate: Students Book. 8 ed. Pearson, 2001.