APA-viite (7. p.)

Isham, S., Grafahrend, H., Nickless, A., Pugh, K., Pleasants, S., Smedley, N., . . . Mulligan, A. (2018). Group-based worry intervention for persecutory delusions: An initial feasibility study. Cambridge University Press.

Chicago-viite (17. p.)

Isham, S., H. Grafahrend, A. Nickless, K. Pugh, S. Pleasants, N. Smedley, D. Freeman, ja A. Mulligan. Group-based Worry Intervention for Persecutory Delusions: An Initial Feasibility Study. Cambridge University Press, 2018.

MLA-viite (9. p.)

Isham, S., et al. Group-based Worry Intervention for Persecutory Delusions: An Initial Feasibility Study. Cambridge University Press, 2018.