Encyclopaedia Encyclopaedia Britannica 2013 : book of the year. -- Chicago : Encyclopaedia Britannica, c2013. -- Obsah: Dates of 2012--People of 2012-- Special reports and year in review--World affairs in 2012--World data. -- ISBN : 978-1-62513-037-2 váz. 2013 Britannica book of the year : events of 2012 encyklopedie * ročenka * země světa