Gaya APA
The Encyclopedia Americana. (1988).
:
Grolier Incrporated.
Gaya Chicago
The Encyclopedia Americana.
.
:
Grolier Incrporated,
1988.
Text.
Gaya MLA
The Encyclopedia Americana.
.
:
Grolier Incrporated,
1988.
Text.
Gaya Turabian
The Encyclopedia Americana.
:
Grolier Incrporated,
1988.
Print.