The method
- Record known details from the book, a readable photograph or bibliographic reference. Separate certain information from remembered details.
- Find a catalogue record and examine title variants. Compare edition statements and contributors, including translator or illustrator when their contribution matters to your need.
- Check the match against a library or seller’s copy. The same title in paperback, larger format or translation may refer to different volumes.
Fictional worked example
In a fictional case, you want an illustrated translation published in 2008. A 2016 record has the same title but names a different translator. Keep both references and note the difference rather than automatically treating the later edition as equivalent.
The record to keep
Keep the full record, address, available identifier and distinguishing edition details. For a citation, also record the page of the copy actually used.
Your record, step by step
For your own situation, record the following information. Check a field when it is documented; missing information still needs verification. The boxes are a reminder within this page.
This checklist does not validate your project. No entries are sent or saved.
Fictional worked case. Two fictional records share author and title. Pagination and translation explain why the edition matters.
| Element | Observation in the case | Interpretation or next check |
|---|---|---|
| Record A | French, translation A, 240 pages | Record the translation before citing a page |
| Record B | French, translation B, 310 pages | Same work, another edition to compare |
| Used passage | Read on page 85 of A | Do not automatically assign page 85 to B |
| Final reference | Author, title, translator, publisher, year and edition | Keep the record matching the copy read |
What this method can establish
A record establishes bibliographic information, not a copy’s availability or condition. Ask the listing’s publisher to clarify incomplete details.
Useful questions before you start
What if an old book has no ISBN?
Do not invent one. Use title-page and catalogue details to identify the edition, then specify the copy or reproduction consulted.
Work, edition, format and copy: four different levels
An ISBN identifies a publication in a particular edition and format. Match the identifier to the record and the document actually used.
- Identify the edition
- Compare the format
- Check the individual copy
| Situation | What changes | Useful check |
|---|---|---|
| Same title, different translation | A shared title does not identify the required text. | Record translator, language, publisher and edition. |
| Print and EPUB | Different product forms receive different ISBNs. | Do not automatically transfer pagination between formats. |
| Well-formed ISBN | The check digit helps detect errors in the number. | Check the record: the digit establishes neither assignment nor availability. |
A cover does not replace the title page and edition details. For a loan or purchase, also check the volume, condition and availability with its holder.
Documentation : International ISBN Agency — What is an ISBN? ↗ · · Read the reference record →
Supporting documentation
These references support the method. Each source shows its language and consultation date; an available directory record explains its purpose.
- BnF — catalogue général FR ↗
Documentation consulted on
An editorial method, a fictional example and references for further reading.