Cita APA (7th ed.)

Oelsner, M., & Zerback, K. (1976). Wernigerode (o.A.).

Cita Chicago (17th ed.)

Oelsner, Manfred, i Kurt Zerback. Wernigerode. o.A. Wernigerode, 1976.

Cita MLA (8th ed.)

Oelsner, Manfred, i Kurt Zerback. Wernigerode. o.A. 1976.