Cita APA (7a ed.)

Urbach, J. R. (1989). The impact of parental head trauma on families with children. [s.n.].

Cita Chicago Style (17a ed.)

Urbach, John R. The Impact of Parental Head Trauma on Families with Children. [S.l.]: [s.n.], 1989.

Cita MLA (9a ed.)

Urbach, John R. The Impact of Parental Head Trauma on Families with Children. [s.n.], 1989.