Matrimony : a petit opera in two acts, as performed at the Theatre Royal, Drury-Lane. /

Avery Classics (Offsite) copy: With markings.

La fanciulla del West : opera in tre atti (dal dramma di David Belasco) /

Mode of access: Internet.

The fairy queen : an opera /

Libretto perhaps by E. Settle--New Grove.

Kniazʹ Igorʹ = Le prince Igor = [Fürst Igor] : opera vʹ 4 aktakhʹ sʹ prologomʹ /

Opera, completed by N. A. Rimskiĭ-Korsakov and A. K. Glazunov.

De opera scholastica fratrum vitae communis in Nederlandia .

"Index operum" : p.[97]-99.

Romeo and Juliet : opera in five acts /

Based on Shakespeare's play.

Don Carlo : opera in cinque atti di G. Méry e C. du Locle /

Mode of access: Internet.

XII Sonate a due violini e violoncello, e cembalo, se piace, opera terza ...

Mode of access: Internet.

Alceste : opera en trois actes avec accompagnemente de pianoforte /

Mode of access: Internet.

Amleto; opera in 5 atti /

Mode of access: Internet.

Opera omnia.

Mode of access: Internet.

Opera.

Pars 3: Introd. and notes in French.

Sancti Fulgentii episcopi Ruspensis Opera.

Mode of access: Internet.

Facundi episcopi Ecclesiae Hermianensis, Opera omnia /

Mode of access: Internet.

Luciani samosatensis opera : ex recensione Guilielmi Dindorfii...

Mode of access: Internet.