Gaya APA
Pocket world in figures. (2010).
London:
Profile Books.
Gaya Chicago
Pocket world in figures.
2011 ed.
London:
Profile Books,
2010.
Text.
Gaya MLA
Pocket world in figures.
2011 ed.
London:
Profile Books,
2010.
Text.
Gaya Turabian
Pocket world in figures.
London:
Profile Books,
2010.
Print.