Cita APA (7a ed.)

Ingard, K. (1994). Notes on sound absorption technology (contiene 3 disks) (1a ed.). [s.n.].

Cita Chicago Style (17a ed.)

Ingard, K.U. Notes on Sound Absorption Technology (contiene 3 Disks). 1a ed. Usa: [s.n.], 1994.

Cita MLA (9a ed.)

Ingard, K.U. Notes on Sound Absorption Technology (contiene 3 Disks). 1a ed. [s.n.], 1994.