Gaya APA
AZAR, B, S. et al
(2006).
Basic English grammar
.
Upper Saddle River, New Jersey:
Prentice Hall Regents.
Gaya MLA
AZAR, Betty, Schrampfer. et al.
"Basic English grammar".
Upper Saddle River, New Jersey:
Prentice Hall Regents,
2006.
Buku.