Fein, R. A. (2002). Threat assessment in schools: A guide to managing threatening situations and to creating safe school climates. U.S. Secret Service U.S. Dept. of Education.
Chicago Style (17. basım) AtıfFein, Robert A. Threat Assessment in Schools: A Guide to Managing Threatening Situations and to Creating Safe School Climates. Washington, D.C: U.S. Secret Service U.S. Dept. of Education, 2002.
MLA (9th ed.) AtıfFein, Robert A. Threat Assessment in Schools: A Guide to Managing Threatening Situations and to Creating Safe School Climates. U.S. Secret Service U.S. Dept. of Education, 2002.
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