@article {223, title = {Brittle Structure Database of the Gloucester and Rockport quadrangles, Massachusetts}, year = {2007}, publisher = {Massachusetts Geological Survey}, edition = {OFR-07-02}, keywords = {$\#$FractureMaps, $\#$MGSPub, Cape Anne, Cape Anne granite, Essex, fault, fracture, Gloucester, Ipswich, joint, Manchester, Rockport, ⃔}, author = {Stephen B Mabee} }