APA

Barlow D. H., Barlow D. H. & Nathan P. E. (2011). The oxford handbook of clinical psychology. New York: Oxford University Press.

Chicago

Barlow David H, Barlow David H and Nathan Peter E. 2011. The oxford handbook of clinical psychology. New York: Oxford University Press.

Harvard

Barlow D. H., Barlow D. H. and Nathan P. E. (2011). The oxford handbook of clinical psychology. New York: Oxford University Press.

MLA

Barlow David H, Barlow David H and Nathan Peter E. The oxford handbook of clinical psychology. New York: Oxford University Press. 2011.