RT Book T1 School shooters: how to recognize schoolroom and campus killers before they attack A1 Langman, Peter LA English PP Lanham u.a. PB Rowman & Littlefield YR 2015 UL https://krimdok.uni-tuebingen.de/Record/812391144 NO Ursprünglich angekündigt u.d.T.: School shooters: how to recognize schoolroom and campus killers before they attack CN a SN 9781442233560 K1 School Violence : Prevention K1 School Shootings : Prevention K1 Schule K1 Gewalt K1 Prävention K1 Schule : Gewalt : Prävention