APA
Ladefoged P., . (1982). A course in phonetics. New York: Harcourt Brace J.
Chicago
Ladefoged Peter, . 1982. A course in phonetics. New York: Harcourt Brace J.
Harvard
Ladefoged P., . (1982). A course in phonetics. New York: Harcourt Brace J.
MLA
Ladefoged Peter, . A course in phonetics. New York: Harcourt Brace J. 1982.