Citazione Stile APA (7a Edizione)

Black, J. W., & Irwin, R. B. (1969). Voice and diction phonation and phonology. Charles E. Merrill.

Citazione stile Chigago Style (17a edizione)

Black, John W., e Ruth B. Irwin. Voice and Diction Phonation and Phonology. Charles E. Merrill, 1969.

Citatione MLA (9a ed.)

Black, John W., e Ruth B. Irwin. Voice and Diction Phonation and Phonology. Charles E. Merrill, 1969.