Gaya APA
LADEFOGED, P., DISNER, S, F.
(2012).
Vowels and consonants
.
UK:
Wiley-Blackwell.
Gaya MLA
LADEFOGED, Peter., DISNER, Sandra, Ferrari.
"Vowels and consonants".
UK:
Wiley-Blackwell,
2012.
Buku.