APA (7th ed.) Citation

Campbell Collaboration & Lipsey, M. W. (20). Campbell systematic reviews. Selbstverl.

Chicago Style (17th ed.) Citation

Campbell Collaboration and Mark W. Lipsey. Campbell Systematic Reviews. Oslo: Selbstverl, 20.

MLA (9th ed.) Citation

Campbell Collaboration and Mark W. Lipsey. Campbell Systematic Reviews. Selbstverl, 20.

Warning: These citations may not always be 100% accurate.