Gaya APA
Azar, Betty Schrampfer. (2003).
Fundamentals of English Grammar : with Answer key : Betty Schrampfer Azar (ed.3).
New York:
Longman.
Gaya Chicago
Azar, Betty Schrampfer.
Fundamentals of English Grammar : with Answer key : Betty Schrampfer Azar.
ed.3
New York:
Longman,
2003.
Buku.
Gaya MLA
Azar, Betty Schrampfer.
Fundamentals of English Grammar : with Answer key : Betty Schrampfer Azar.
ed.3
New York:
Longman,
2003.
Buku.
Gaya Turabian
Azar, Betty Schrampfer.
Fundamentals of English Grammar : with Answer key : Betty Schrampfer Azar.
ed.3
New York:
Longman,
2003.
Buku.