%0 Journal Article
%T Effect of 1St-Grade Classroom Environment on Shy Behavior, Aggressive-Behavior, and Concentration Problems
%J American journal of community psychology
%D 1991
%A Werthamerlarsson, L
%A Kellam, Sheppard
%A Wheeler, L
%V 19
%N 4
%P 585-602
%X <p>[Abstract unavailable]</p>
%G 
%I John Wiley and Sons
%@ 0091-0562
%U http://dx.doi.org/