Gaya APA
Azar, Betty Schrampfer. (1999).
Understanding and Using English Grammar (3).
nyu:
Person Education.
Gaya Chicago
Azar, Betty Schrampfer.
Understanding and Using English Grammar.
3
nyu:
Person Education,
1999.
Buku.
Gaya MLA
Azar, Betty Schrampfer.
Understanding and Using English Grammar.
3
nyu:
Person Education,
1999.
Buku.
Gaya Turabian
Azar, Betty Schrampfer.
Understanding and Using English Grammar.
3
nyu:
Person Education,
1999.
Buku.