I'm developing a project that happens to use a lot of open-source third-party libraries by different authors. Most of these libraries use the same license (mostly MIT, with the occasional Apache or BSD license here or there). My LICENSE.txt file will likely be incredibly long and repetitive, but I'm not going to skip out on compliance.
If I use a lot of libraries that are released under the exact same license, must I include the text of the license once for each library? Or can I just include the license once, plus the unabridged copyright statement (author, year, license name, etc.) for each library? Or does that depend on the license itself?
EDIT: I understand that some licenses have named variations (e.g. BSD-3-Clause vs. BSD-3-Clause-No-Military-License or BSD-2-Clause). For the purpose of this question, I consider named variants to be different licenses entirely.