There are paper volumes, documents(original and scans) and electronic PDF in my reference library, categorized by subject matter.
The libaray includes Technical Guides (e.g. service manuals) and General Reference Materials. The bibliographical information is as complete as the source allowed. It should not be assumed that any missing information in a bibliographical entry is not available.
The annotations, for the most part, have been derived from the introductions, prefaces, and forwards of the books.