APA

Lado R., Lado R. & Fries C. C. (19591954). English pronunciation: exercises in sound segments, intonation, and rhythm. Ann Arbor: University of Michigan Press.

Chicago

Lado Robert, Lado Robert and Fries Charles Carpenter. 19591954. English pronunciation: exercises in sound segments, intonation, and rhythm. Ann Arbor: University of Michigan Press.

Harvard

Lado R., Lado R. and Fries C. C. (19591954). English pronunciation: exercises in sound segments, intonation, and rhythm. Ann Arbor: University of Michigan Press.

MLA

Lado Robert, Lado Robert and Fries Charles Carpenter. English pronunciation: exercises in sound segments, intonation, and rhythm. Ann Arbor: University of Michigan Press. 19591954.