Cita APA (7th ed.)

Waterman, R. (2006). The handbook for working singers. Schirmer Trade Books.

Cita Chicago (17th ed.)

Waterman, Roma. The Handbook for Working Singers. London: Schirmer Trade Books, 2006.

Cita MLA (9th ed.)

Waterman, Roma. The Handbook for Working Singers. Schirmer Trade Books, 2006.