Cita APA (7a ed.)

Barkley, R. A. (19). Defiant children. Guilford.

Cita Chicago Style (17a ed.)

Barkley, Russell A. Defiant Children. New York [u.a.]: Guilford, 19.

Cita MLA (9a ed.)

Barkley, Russell A. Defiant Children. Guilford, 19.