[et.al], V. Operatic album containing six song for contralto voice selected from standard and modern operas Book II. G. Ricordi.
Chicago Style (17th ed.) Citation[et.al], VERDI. Operatic Album Containing Six Song for Contralto Voice Selected from Standard and Modern Operas Book II. G. Ricordi.
MLA (8th ed.) Citation[et.al], VERDI. Operatic Album Containing Six Song for Contralto Voice Selected from Standard and Modern Operas Book II. G. Ricordi.
Warning: These citations may not always be 100% accurate.