Cita APA (7th ed.)

Underhill, S. (2000). Best of twins: Steven Underhill. Gmünder.

Cita Chicago (17th ed.)

Underhill, Steven. Best of Twins: Steven Underhill. Berlin: Gmünder, 2000.

Cita MLA (8th ed.)

Underhill, Steven. Best of Twins: Steven Underhill. Gmünder, 2000.

Atenció: Aquestes cites poden no estar 100% correctes.