Use the Sofia Discovery tool (the library catalogue) to find books. For example:
- Do a keyword search for: railway safety
- Find a good book, e.g. Railway safety, reliability, and security, and click on the title. You will see a subject heading listed in the Subject field: Railroads - Safety measures.
- Click on the subject heading link to retrieve more books about that subject.
Search tips
Truncation symbol: |
* |
e.g. rail* will retrieve catalogue records containing the words rail, railway, railroad, etc. |
Phrase searching: |
"___" |
e.g. "railway safety" will retrieve catalogue records containing the exact phrase: railway safety |
Boolean operators: |
(), AND, OR, NOT
default: AND
Boolean operators must be in capital letters |
e.g. safety AND (railway OR railroad) will retrieve catalogue records containing the word safety AND either railway OR railroad |