Gaya APA
Grolier encyclopedia of knowledge. (1993).
Danbury:
Grolier.
Gaya Chicago
Grolier encyclopedia of knowledge.
.
Danbury:
Grolier,
1993.
Text.
Gaya MLA
Grolier encyclopedia of knowledge.
.
Danbury:
Grolier,
1993.
Text.
Gaya Turabian
Grolier encyclopedia of knowledge.
Danbury:
Grolier,
1993.
Print.