Gaya APA
English & English second Language 1980. (1980).
s.l.:
Prentice Hall International.
Gaya Chicago
English & English second Language 1980.
1.
s.l.:
Prentice Hall International,
1980.
Buku.
Gaya MLA
English & English second Language 1980.
1.
s.l.:
Prentice Hall International,
1980.
Buku.
Gaya Turabian
English & English second Language 1980.
s.l.:
Prentice Hall International,
1980.
Buku.