APA Style
Clarke, Penny. (2005).
World History Time Lines .
:
Barron's.
Chicago Style
Clarke, Penny.
World History Time Lines.
:
Barron's,
2005.
Text.
MLA Style
Clarke, Penny.
World History Time Lines.
:
Barron's,
2005.
Text.
Turabian Style
Clarke, Penny.
World History Time Lines.
:
Barron's,
2005.
Print.