Cita APA (7a ed.)

Vennard, W. (1968). Singing: The mechanism and the technic / by William Vennard (Rev. ed., greatly enlarged, 5. ed.). Fischer.

Cita Chicago Style (17a ed.)

Vennard, William. Singing: The Mechanism and the Technic / by William Vennard. Rev. ed., greatly enlarged, 5. ed. New York, NY [u.a.]: Fischer, 1968.

Cita MLA (8a ed.)

Vennard, William. Singing: The Mechanism and the Technic / by William Vennard. Rev. ed., greatly enlarged, 5. ed. Fischer, 1968.