Specific Rules #1 for Pagination (optional) to Citing Entire Reports Vancouver Style: Roman numerals for pages

If all of the pages (not just the introductory pages) of a report have roman numerals instead of the usual arabic numbers:

Convert the roman numeral on the last page of the text to an arabic number.

Follow the number by "p."

Place the number and "p." in square brackets, such as [12 p.].

End page information with a period.

Example: [20 p.].

Según:

Citing Medicine: The NLM Style Guide for Authors, Editors, and Publishers [Internet]. 2nd edition. Chapter 4: Scientific and Technical Reports