http://digfir-published.macmillanusa.com/DigFir_Accessibility/lang_attribute.html
Chapter
3. PDT-1938
58f77a677894d2cd11000000
http://digfir-published.macmillanusa.com/DigFir_Accessibility/lang_attribute_dlap.xmlDLAP questions58f77a677894d2cd11000000