Gaya APA
The World Book Encyclopedia - W-X Y-Z. (1973).
:
.
Gaya Chicago
The World Book Encyclopedia - W-X Y-Z.
.
:
,
1973.
Text.
Gaya MLA
The World Book Encyclopedia - W-X Y-Z.
.
:
,
1973.
Text.
Gaya Turabian
The World Book Encyclopedia - W-X Y-Z.
:
,
1973.
Print.