Citação norma APA

Hammond, J., & Brooks, J. (2001). The World Trade Center Attack: Helping the helpers: the role of critical incident stress management. BioMed Central.

Citação norma Chicago

Hammond, Jeffrey, and Jill Brooks. The World Trade Center Attack: Helping the Helpers: The Role of Critical Incident Stress Management. BioMed Central, 2001.

Citação norma MLA

Hammond, Jeffrey, and Jill Brooks. The World Trade Center Attack: Helping the Helpers: The Role of Critical Incident Stress Management. BioMed Central, 2001.

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.