Cita APA (7a ed.)

Davidson, P. W. (1999). Characteristics of older adults with intellectual disabilities referred for crisis intervention. [s.n.].

Cita Chicago Style (17a ed.)

Davidson, P. W. Characteristics of Older Adults with Intellectual Disabilities Referred for Crisis Intervention. [S.l.]: [s.n.], 1999.

Cita MLA (9a ed.)

Davidson, P. W. Characteristics of Older Adults with Intellectual Disabilities Referred for Crisis Intervention. [s.n.], 1999.