| Subject | English | German |
| gen. | quick reference service | Schnellnachweis-Service |
| IT | reference service | Bereitstellung von Information |
| IT | reference service | bibliographischer Auskunftsdienst |
| environ. | reference service The provision of aid by library staff trained to interpret library materials and library organizational structures to meet the informational, educational, cultural, recreational or research needs of the library's clients | Informationsvermittlungsdienst |
| gen. | reference service | Auskunftsdienst |
| IT | reference service | bibliographische Auskunftserteilung |
| IT | reference service | Auskunftserteilung |
| IT | reference services | Auskunftsdienst |