Gaya APA
The first cities. (1973).
tempaterbit:
penerbit.
Gaya Chicago
The first cities.
Edisi.
tempaterbit:
penerbit,
1973.
Text.
Gaya MLA
The first cities.
Edisi.
tempaterbit:
penerbit,
1973.
Text.
Gaya Turabian
The first cities.
tempaterbit:
penerbit,
1973.
Print.