Gaya APA
English made easy. (1987).
tempaterbit:
penerbit.
Gaya Chicago
English made easy.
Edisi.
tempaterbit:
penerbit,
1987.
Text.
Gaya MLA
English made easy.
Edisi.
tempaterbit:
penerbit,
1987.
Text.
Gaya Turabian
English made easy.
tempaterbit:
penerbit,
1987.
Print.