Cita APA (7th ed.)

Matthei, E., & Roeper, T. (1983). Understanding and producing speech. Fontana Paberbacks.

Cita Chicago (17th ed.)

Matthei, Edward, i Thomas Roeper. Understanding and Producing Speech. Londres: Fontana Paberbacks, 1983.

Cita MLA (9th ed.)

Matthei, Edward, i Thomas Roeper. Understanding and Producing Speech. Fontana Paberbacks, 1983.