Gaya APA
Intermediate oral skills. (1977).
tempaterbit:
penerbit.
Gaya Chicago
Intermediate oral skills.
Edisi.
tempaterbit:
penerbit,
1977.
Text.
Gaya MLA
Intermediate oral skills.
Edisi.
tempaterbit:
penerbit,
1977.
Text.
Gaya Turabian
Intermediate oral skills.
tempaterbit:
penerbit,
1977.
Print.