Παραπομπή APA

Christiansen, R. (2002). The faber pocket guide to opera. Faber and faber.

Παραπομπή Chicago Style

Christiansen, Rupert. The Faber Pocket Guide to Opera. London: Faber and faber, 2002.

Παραπομπή MLA

Christiansen, Rupert. The Faber Pocket Guide to Opera. Faber and faber, 2002.