I imagine this may be an overkill, but when making references to large e.g. mathematical books, I find it helpful to have both the page number and the definition / proposition / theorem / lemma (etc.) number. Having both allows the reader to directly flip to the correct page, and then to have a good tool to "locate" the quoted part (as e.g. "Definition 3.1.10" can be on the same page as 10 other definitions, and could be on page 10 or 13208, depending on the numbering convention used by the authors).
I have two questions:
- Is this practice strongly frowned upon? I don't remember seeing it in my field (computer science / mathematics), but at the same time I don't remember seeing any indication given at all (that is, no page number, and no definition number),
- What should be the correct order to display the information, using e.g. Bibtex's plainurl style:
As you can see in the usual definition [10, p. 23, Definition 12]…
As you can see in the usual definition [10, Definition 12, p. 23]…