Gaya APA
The empire builders. (1974).
tempaterbit:
penerbit.
Gaya Chicago
The empire builders.
Edisi.
tempaterbit:
penerbit,
1974.
Text.
Gaya MLA
The empire builders.
Edisi.
tempaterbit:
penerbit,
1974.
Text.
Gaya Turabian
The empire builders.
tempaterbit:
penerbit,
1974.
Print.