APA

Barlow D. H., . (1993). Clinical handbook of psychological disorders. New York: Guilford Press.

Chicago

Barlow David H, . 1993. Clinical handbook of psychological disorders. New York: Guilford Press.

Harvard

Barlow D. H., . (1993). Clinical handbook of psychological disorders. New York: Guilford Press.

MLA

Barlow David H, . Clinical handbook of psychological disorders. New York: Guilford Press. 1993.