Cita APA (7a ed.)

Ulbrich, R. (1988). Irland. Brockhaus.

Cita Chicago Style (17a ed.)

Ulbrich, Reinhard. Irland. Leipzig: Brockhaus, 1988.

Cita MLA (8a ed.)

Ulbrich, Reinhard. Irland. Brockhaus, 1988.