Cita APA (7th ed.)

Digby, C., Myers, J., & Pitkeathly, I. (1990). Spotlight on First Certificate: An integrated course for the First Certificate Examination. Students' Book (1a. ed.). Cassell.

Cita Chicago (17th ed.)

Digby, Christine, John Myers, i Iain Pitkeathly. Spotlight on First Certificate: An Integrated Course for the First Certificate Examination. Students' Book. 1a. ed. Londres: Cassell, 1990.

Cita MLA (9th ed.)

Digby, Christine, et al. Spotlight on First Certificate: An Integrated Course for the First Certificate Examination. Students' Book. 1a. ed. Cassell, 1990.