Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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