Gaya APA
English for the office. (1998).
tempaterbit:
penerbit.
Gaya Chicago
English for the office.
Edisi.
tempaterbit:
penerbit,
1998.
Text.
Gaya MLA
English for the office.
Edisi.
tempaterbit:
penerbit,
1998.
Text.
Gaya Turabian
English for the office.
tempaterbit:
penerbit,
1998.
Print.