APA (7th ed.) Citation

VACCAI, N. Practical Italian method of singing for low voice No. 157. White-Smith Music Publishing.

Chicago Style (17th ed.) Citation

VACCAI, Niccolo. Practical Italian Method of Singing for Low Voice No. 157. White-Smith Music Publishing.

MLA (8th ed.) Citation

VACCAI, Niccolo. Practical Italian Method of Singing for Low Voice No. 157. White-Smith Music Publishing.

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