If I want to cite different pages of the same source, I will also create just a source bullet point at the bottom:
* Barry R. Smith, "Manuscript on that one Smith family," self-published, The Moon, 2050.
And then I would create individual refs like:
<ref>Smith, page 10</ref>
<ref>Smith, page 100</ref>
at the different places where I need the various pages. With this approach, you can also put external links to the different pages if the source is online, so the reader is one click away from seeing the exact page of interest.