B
ERKSHIRE
H
ATHAWAY
INC.
2012 Annual Report (PDF file)
2012 SEC Form 10-K (PDF file)
2012 Financial Statement XBRL files
brka-20121231.xml
brka-20121231.xsd
brka-20121231_cal.xml
brka-20121231_def.xml
brka-20121231_lab.xml
brka-20121231_pre.xml
SEC XBRL Web Page
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