APA (7th ed.) Citation

Allison, J. (1994). The pocket companion to opera. Reed International Books.

Chicago Style (17th ed.) Citation

Allison, John. The Pocket Companion to Opera. London: Reed International Books, 1994.

MLA (9th ed.) Citation

Allison, John. The Pocket Companion to Opera. Reed International Books, 1994.

Warning: These citations may not always be 100% accurate.