Gaya APA
Understanding modern english book one. (1980).
tempaterbit:
penerbit.
Gaya Chicago
Understanding modern english book one.
Edisi.
tempaterbit:
penerbit,
1980.
Text.
Gaya MLA
Understanding modern english book one.
Edisi.
tempaterbit:
penerbit,
1980.
Text.
Gaya Turabian
Understanding modern english book one.
tempaterbit:
penerbit,
1980.
Print.