Gaya APA
Barnard, G, L., McKay, P, S. (1963).
Practice in spoken english: An anthology of exercises in english sound .
London:
Macmillan Education Limited.
Gaya MLA
Barnard, G., L.., McKay, P., S..
"Practice in spoken english: An anthology of exercises in english sound".
London:
Macmillan Education Limited,
1963.
Text.