Citação norma APA

van Dijk, C. E., Verheij, R. A., Spreeuwenberg, P., Groenewegen, P. P., & de Bakker, D. H. (2011). Minor surgery in general practice and effects on referrals to hospital care: Observational study. BioMed Central.

Citação norma Chicago

van Dijk, Christel E., Robert A. Verheij, Peter Spreeuwenberg, Peter P. Groenewegen, and Dinny H. de Bakker. Minor Surgery in General Practice and Effects On Referrals to Hospital Care: Observational Study. BioMed Central, 2011.

Citação norma MLA

van Dijk, Christel E., et al. Minor Surgery in General Practice and Effects On Referrals to Hospital Care: Observational Study. BioMed Central, 2011.

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.