Page range
The first and last page of a work inside a larger container, given in the reference entry rather than the in-text citation.
A journal article or book chapter occupies part of something bigger, so its reference entry states where: 145–162. This is a property of the source, not a pointer into it, which is why it belongs in the reference list and not in the in-text citation.
Styles disagree about eliding the second number. Chicago and MLA condense 145–162 to 145–62; APA and most numeric styles print both in full. All of them want an en dash rather than a hyphen, which is the detail most word processors get wrong.
See also
LocatorThe part of a citation that points to the exact spot inside a source: a page, paragraph, timestamp, section, or line.Reference entryOne complete record in a reference list, containing everything a reader needs to find the source themselves.Volume and issueThe numbering that locates a journal article within a periodical's run: the volume is usually the year's worth, the issue a single instalment.