Cita APA (7a ed.)

Vaccai, N., & Elson, L. C. (1878). Practical Italian method. White-Smith Music.

Cita Chicago Style (17a ed.)

Vaccai, Niccolo, y Louis C. Elson. Practical Italian Method. Boston: White-Smith Music, 1878.

Cita MLA (9a ed.)

Vaccai, Niccolo, y Louis C. Elson. Practical Italian Method. White-Smith Music, 1878.