Gaya APA
People of long ago. (1979).
tempaterbit:
penerbit.
Gaya Chicago
People of long ago.
Edisi.
tempaterbit:
penerbit,
1979.
Text.
Gaya MLA
People of long ago.
Edisi.
tempaterbit:
penerbit,
1979.
Text.
Gaya Turabian
People of long ago.
tempaterbit:
penerbit,
1979.
Print.