Gaya APA
Azar, Betty Schrampfer. (2003).
Fundamentals of english grammar: with answer key / Betty Schrampfer Azar (3rd ed.).
:
New York: Longman.
Gaya Chicago
Azar, Betty Schrampfer.
Fundamentals of english grammar: with answer key / Betty Schrampfer Azar.
3rd ed.
:
New York: Longman,
2003.
Buku.
Gaya MLA
Azar, Betty Schrampfer.
Fundamentals of english grammar: with answer key / Betty Schrampfer Azar.
3rd ed.
:
New York: Longman,
2003.
Buku.
Gaya Turabian
Azar, Betty Schrampfer.
Fundamentals of english grammar: with answer key / Betty Schrampfer Azar.
3rd ed.
:
New York: Longman,
2003.
Buku.