Cita APA (7a ed.)

Barkley, R. A. (2018). Attention-deficit hyperactivity disorder: A handbook for diagnosis and treatment (Fourth edition. Paperback edition.). The Guilford Press.

Cita Chicago Style (17a ed.)

Barkley, Russell A. Attention-deficit Hyperactivity Disorder: A Handbook for Diagnosis and Treatment. Fourth edition. Paperback edition. New York ; London: The Guilford Press, 2018.

Cita MLA (9a ed.)

Barkley, Russell A. Attention-deficit Hyperactivity Disorder: A Handbook for Diagnosis and Treatment. Fourth edition. Paperback edition. The Guilford Press, 2018.