Cita APA (7a ed.)

Sorensen, D., & Horii, Y. (1983). Frequency and amplitude perturbation in the voices of female speakers. [s.n.].

Cita Chicago Style (17a ed.)

Sorensen, David, y Yoshiyuki Horii. Frequency and Amplitude Perturbation in the Voices of Female Speakers. [S.l.]: [s.n.], 1983.

Cita MLA (9a ed.)

Sorensen, David, y Yoshiyuki Horii. Frequency and Amplitude Perturbation in the Voices of Female Speakers. [s.n.], 1983.