Citação norma APA

Schiefner, J., Magnusson, K., Zaune, U., & Vester, E. (2004). Percutaneous dilatational tracheostomy – a comparison of three methods: Ciaglia Blue Rhino, PercuTwist and Griggs' Guidewire Dilation Forceps (GWDF). BioMed Central.

Citação norma Chicago

Schiefner, J., K. Magnusson, U. Zaune, and E. Vester. Percutaneous Dilatational Tracheostomy – a Comparison of Three Methods: Ciaglia Blue Rhino, PercuTwist and Griggs' Guidewire Dilation Forceps (GWDF). BioMed Central, 2004.

Citação norma MLA

Schiefner, J., K. Magnusson, U. Zaune, and E. Vester. Percutaneous Dilatational Tracheostomy – a Comparison of Three Methods: Ciaglia Blue Rhino, PercuTwist and Griggs' Guidewire Dilation Forceps (GWDF). BioMed Central, 2004.

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