Citação norma APA

van Ballegooijen, W., Riper, H., van Straten, A., Kramer, J., Conijn, B., & Cuijpers, P. (2011). The effects of an Internet based self-help course for reducing panic symptoms - Don't Panic Online: Study protocol for a randomised controlled trial. BioMed Central.

Citação norma Chicago

van Ballegooijen, Wouter, Heleen Riper, Annemieke van Straten, Jeannet Kramer, Barbara Conijn, and Pim Cuijpers. The Effects of an Internet Based Self-help Course for Reducing Panic Symptoms - Don't Panic Online: Study Protocol for a Randomised Controlled Trial. BioMed Central, 2011.

Citação norma MLA

van Ballegooijen, Wouter, et al. The Effects of an Internet Based Self-help Course for Reducing Panic Symptoms - Don't Panic Online: Study Protocol for a Randomised Controlled Trial. BioMed Central, 2011.

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