Gaya APA
Hill, L.
(1990).
Word power 3000: vocabulary tests and exercises / L.A. Hill
(
Cet.5)
.
:
Oxford.
Gaya MLA
Hill, L.A..
"Word power 3000: vocabulary tests and exercises / L.A. Hill".
Cet.5
:
Oxford,
1990.
Referensi.