Cita APA (7a ed.)

Ladefoged, P. (1973). Preliminaries to linguistic phonetics. University of Chicago Press.

Cita Chicago Style (17a ed.)

Ladefoged, Peter. Preliminaries to Linguistic Phonetics. Chicago [etc.]: University of Chicago Press, 1973.

Cita MLA (9a ed.)

Ladefoged, Peter. Preliminaries to Linguistic Phonetics. University of Chicago Press, 1973.