Gaya APA
What people do. (1979).
tempaterbit:
penerbit.
Gaya Chicago
What people do.
Edisi.
tempaterbit:
penerbit,
1979.
Text.
Gaya MLA
What people do.
Edisi.
tempaterbit:
penerbit,
1979.
Text.
Gaya Turabian
What people do.
tempaterbit:
penerbit,
1979.
Print.