Cita APA (7a ed.)

Beck, A. T. (1961). An inventory for measuring depression. [s.n.].

Cita Chicago Style (17a ed.)

Beck, Aaron T. An Inventory for Measuring Depression. [S.l.]: [s.n.], 1961.

Cita MLA (9a ed.)

Beck, Aaron T. An Inventory for Measuring Depression. [s.n.], 1961.