Cita APA (7th ed.)

Studzinska-Pasieka, K., & Otto, M. (2011). Open your english wider: English for dental professionals. Bestom.

Cita Chicago (17th ed.)

Studzinska-Pasieka, Kinga, i Marcin Otto. Open Your English Wider: English for Dental Professionals. Lodz: Bestom, 2011.

Cita MLA (9th ed.)

Studzinska-Pasieka, Kinga, i Marcin Otto. Open Your English Wider: English for Dental Professionals. Bestom, 2011.