APA (7e ed.) Bronvermelding

(2014). A study of active shooter incidents in the United States between 2000 and 2013 / Blair, J. Pete, and Schweit, Katerine W.

Chicago (17e ed.) Bronvermelding

A Study of Active Shooter Incidents in the United States Between 2000 and 2013 / Blair, J. Pete, and Schweit, Katerine W. 2014.

MLA (9e ed.) Bronvermelding

A Study of Active Shooter Incidents in the United States Between 2000 and 2013 / Blair, J. Pete, and Schweit, Katerine W. 2014.

Let op: Deze citaties zijn niet altijd 100% accuraat.