APA Style
The World Book Encyclopedia, Volume --15 P. (2007).
:
The world book Inc.
Chicago Style
The World Book Encyclopedia, Volume --15 P.
Volume --15.
:
The world book Inc,
2007.
.
MLA Style
The World Book Encyclopedia, Volume --15 P.
Volume --15.
:
The world book Inc,
2007.
.
Turabian Style
The World Book Encyclopedia, Volume --15 P.
:
The world book Inc,
2007.
.