References are presented in numerical order by the order in which they appear in the document.
If your source has between 2 and up to 6 authors, list all the authors in the order listed on the source separated by commas.
A book with three authors:
3. Hull J, Forton J, Thomson AH. Paediatric respiratory medicine. 2nd ed. Oxford: Oxford University Press; 2015.
If there are more than 6 authors, you may put the first six followed by a comma then 'et al.' meaning 'and others'.
This electronic journal article has 12 authors, but the reference is shortened to:
4. Burns J, Mason C, Mueller N, Ohlander J, Zock J, Drobnic F, et al. Asthma prevalence in olympic summer athletes and the general population: an analysis of three European countries. Respir Med [Internet]. 2015 [cited 2022 Aug 28]; 109(7): 813-820. Available from: https://www.sciencedirect.com.
You should not abbreviate the words 'editor' or 'editors'.
5. Redclift N, Gibbon S, editors. Genetics: critical concepts in social and cultural theory. London: Routlege; 2017.