Viney, P. (1992). Grapevine: Video activity book 3. Oxford.
Cita Chicago Style (17a ed.)Viney, Peter. Grapevine: Video Activity Book 3. Hong Kong: Oxford, 1992.
Cita MLA (9a ed.)Viney, Peter. Grapevine: Video Activity Book 3. Oxford, 1992.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.