Gaya APA
Ypenburg, I.
(2005).
A manual of English phonetics and phonology
.
Bengkulu:
Gunter Narr Verlag Tubingen.
Gaya MLA
Ypenburg, Irene.
"A manual of English phonetics and phonology".
Bengkulu:
Gunter Narr Verlag Tubingen,
2005.
Text.