Cita APA (7a ed.)

Becker, R. W. (1974). A semiautomatic speaker recognition system. U.S. Govt. Print. Office.

Cita Chicago Style (17a ed.)

Becker, R. W. A Semiautomatic Speaker Recognition System. Washington, D.C: U.S. Govt. Print. Office, 1974.

Cita MLA (8a ed.)

Becker, R. W. A Semiautomatic Speaker Recognition System. U.S. Govt. Print. Office, 1974.