Gaya APA
Contemporary english tense. (1987).
tempaterbit:
penerbit.
Gaya Chicago
Contemporary english tense.
Edisi.
tempaterbit:
penerbit,
1987.
Text.
Gaya MLA
Contemporary english tense.
Edisi.
tempaterbit:
penerbit,
1987.
Text.
Gaya Turabian
Contemporary english tense.
tempaterbit:
penerbit,
1987.
Print.