(03-14) 00:08 PDT Chicago (AP) -- The venerable reference information company Encyclopaedia Britannica Inc. says it will stop publishing print editions of its flagship encyclopedia and focus on its digital offerings. Read more: http://www.sfgate.com/cgi-bin/article.cgi?f=/n/a/2012/03/13/national/a164607D22.DTL#ixzz1p4h3yQCl