This is the Vancouver style for referencing, used at the Univerity of Portsmouth within the School of Pharmacy and Biomedical Sciences and the Radiography departments.

This guide is modelled on Citing Medicine: The NLM Style Guide for Authors, Editors, and Publishers (2nd edition). You may wish to consult this source directly for additional information or examples.

Standards - Electronic source




Organisation Responsible for the Standard. Standard number. Name of standard [Internet]. Place of publication: Publisher; Year [revision DD Mon YYYY; cited YYYY Mon DD]. Available from: URL




British Standards Institution. BS EN IEC 61223-6. Evaluation and routine testing in medical imaging departments. Acceptance and constancy tests. Imaging performance of mammographic X-ray equipment used in a mammographic tomosynthesis mode of operation [Internet]. London: BSI; 2020 [cited 2021 Jul 22]. Available from:


British Standards Institution. BS ISO 14418-5. Containers and accessories for pharmaceutical preparations. Dropper assemblies [Internet]. London: BSI; 2015 [updated 2020 Jun 11; cited 2021 Jul 22]. Available from:


In text Citation/Reference List

Remember this will be a running number at the first use of a reference. If the reference is re-used then repeat the number allocated. 

Keep your style constant, either parenthesis (number) throughout, or superscript number. Do not change between the two. If your department recommends a particular style then use that.


Containers for pharmaceutical preparations (1 p93) should be ...


Containers for pharmaceutical preparations 1 should be ...