%0 Journal Article
%T The identification of extractor marks on fired shells
%J Journal of criminal law and criminology (1931-1951)
%D 1939
%A Wilson, Charles M.
%V 29
%N 5
%P 724-730
%X <p>[Abstract unavailable]</p>
%G 
%I Northwestern University Press
%@ 0885-2731
%U http://dx.doi.org/10.2307/1136860