Cita APA (7a ed.)

Krastel, B., & Margraf, J. (2009). Depressive and anxious symptomatology after September 2001: Impact of global and local disasters? Swiss journal of psychology, 68(4), 221-225.

Cita Chicago Style (17a ed.)

Krastel, Bettina, y Jürgen Margraf. "Depressive and Anxious Symptomatology After September 2001: Impact of Global and Local Disasters?" Swiss Journal of Psychology 68, no. 4 (2009): 221-225.

Cita MLA (9a ed.)

Krastel, Bettina, y Jürgen Margraf. "Depressive and Anxious Symptomatology After September 2001: Impact of Global and Local Disasters?" Swiss Journal of Psychology, vol. 68, no. 4, 2009, pp. 221-225.