Cita APA (7a ed.)

Billina, A. (2010). Fit in Grammatik A1-A2 (Taschentrainer.). Hueber.

Cita Chicago Style (17a ed.)

Billina, Anneli. Fit in Grammatik A1-A2. Taschentrainer. Ismaning: Hueber, 2010.

Cita MLA (9a ed.)

Billina, Anneli. Fit in Grammatik A1-A2. Taschentrainer. Hueber, 2010.