APA (7th ed.) Citation

Langman, P. (2021). Warning signs: Identifying school shooters before they strike. Langman Psychological Associates, LLC.

Chicago Style (17th ed.) Citation

Langman, Peter. Warning Signs: Identifying School Shooters Before They Strike. Allentown: Langman Psychological Associates, LLC, 2021.

MLA (8th ed.) Citation

Langman, Peter. Warning Signs: Identifying School Shooters Before They Strike. Langman Psychological Associates, LLC, 2021.

Warning: These citations may not always be 100% accurate.