Cita APA (7th ed.)

Steinmetz, W. (1972). Orgel-Symbol. Ed. Cranz.

Cita Chicago (17th ed.)

Steinmetz, Willi. Orgel-Symbol. Wiesbaden [u.a.]: Ed. Cranz, 1972.

Cita MLA (8th ed.)

Steinmetz, Willi. Orgel-Symbol. Ed. Cranz, 1972.