Gaya APA
ALLEN, W, S.
(2001).
Living english structure for schools
(
cet. 15)
.
Yogyakarta:
Kanisius.
Gaya MLA
ALLEN, W., Stannard.
"Living english structure for schools".
cet. 15
Yogyakarta:
Kanisius,
2001.
Buku.