APA (7th ed.) Citation

Tetrazzini, L., & Caruso, E. (1975). The art of singing. Da Capo Press.

Chicago Style (17th ed.) Citation

Tetrazzini, Luisa, and Enrico Caruso. The Art of Singing. New York: Da Capo Press, 1975.

MLA (9th ed.) Citation

Tetrazzini, Luisa, and Enrico Caruso. The Art of Singing. Da Capo Press, 1975.