APA-referens (7:e uppl.)

Nygård, K., de Jong, B., Guerin, P., Andersson, Y., Olsson, A., & Giesecke, J. (2004). Emergence of new Salmonella Enteritidis phage types in Europe? Surveillance of infections in returning travellers. BioMed Central.

Chicago-referens (17:e uppl.)

Nygård, K., B. de Jong, P. Guerin, Y. Andersson, A. Olsson, och J. Giesecke. Emergence of New Salmonella Enteritidis Phage Types in Europe? Surveillance of Infections in Returning Travellers. BioMed Central, 2004.

MLA-referens (9:e uppl.)

Nygård, K., et al. Emergence of New Salmonella Enteritidis Phage Types in Europe? Surveillance of Infections in Returning Travellers. BioMed Central, 2004.