Cita APA (7a ed.)

Adamson, D. (2000). Snapshot. Starter: Test book (7a. ed.). Longman.

Cita Chicago Style (17a ed.)

Adamson, Donald. Snapshot. Starter: Test Book. 7a. ed. Reino Unido: Longman, 2000.

Cita MLA (8a ed.)

Adamson, Donald. Snapshot. Starter: Test Book. 7a. ed. Longman, 2000.