Cita APA (7a ed.)

Campbell Collaboration. (2004). Campbell Systematic Reviews. [Verlag nicht ermittelbar].

Cita Chicago Style (17a ed.)

Campbell Collaboration. Campbell Systematic Reviews. Oslo: [Verlag nicht ermittelbar], 2004.

Cita MLA (9a ed.)

Campbell Collaboration. Campbell Systematic Reviews. [Verlag nicht ermittelbar], 2004.