(1999). Early Warning, Timely Response: A Guide to Safe Schools. U.S. Department of Education.
Cita Chicago (17th ed.)Early Warning, Timely Response: A Guide to Safe Schools. U.S. Department of Education, 1999.
Cita MLA (9th ed.)Early Warning, Timely Response: A Guide to Safe Schools. U.S. Department of Education, 1999.
Atenció: Aquestes cites poden no estar 100% correctes.