Cita APA (7th ed.)

Schumann, U. M. (1999). Bridges over troubled water. trans.

Cita Chicago (17th ed.)

Schumann, Ulrich Maximilian. "Bridges over Troubled Water." Trans 1999.

Cita MLA (8th ed.)

Schumann, Ulrich Maximilian. "Bridges over Troubled Water." Trans, 1999.

Atenció: Aquestes cites poden no estar 100% correctes.