Informe final y hallazgos de Safe School Initiative  implicaciones para la prevención de ataques en las escuales de los Estados Unidos 
de Bryan Vossekuil ... [et al.]. 
 - Washington, D.C.  U.S. Secret Service y U.S. Dept. of Education  [2002] 
 - viii, 54 p.  ill.  23 cm. 
<br/><br/> Shipping list no.: 2004-0041-P.  "Mayo de 2002." 
<br/><br/>Includes bibliographical references (p. 49). 
<br/><br/><label>Subjects--Topical Terms: </label><br/>School violence--Government policy--United States.<br/>School violence--Prevention.--United States
<br/><br/><label>GPO Item No.: </label>0974 
<br/><br/><label>Gov. Doc. Class. No.: </label>T 34.8:SCH 6/2/SPAN.