Gaya APA
The Grolier Encyclopedia of Knowledge. (sa).
New York:
Grolier Incorporated.
Gaya Chicago
The Grolier Encyclopedia of Knowledge.
.
New York:
Grolier Incorporated,
sa.
Reference.
Gaya MLA
The Grolier Encyclopedia of Knowledge.
.
New York:
Grolier Incorporated,
sa.
Reference.
Gaya Turabian
The Grolier Encyclopedia of Knowledge.
New York:
Grolier Incorporated,
sa.
Reference.