Ralph of Laon, -1131/1138

Notes:

• This record contains information from VIAF (Virtual International Authority File) which is made available under the ODC Attribution License.

External links:

• VIAF: Virtual International Authority File (authority record)

Author of:

• Ralph of Laon: De abaco [Latin]

Manuscripts:

• MS. Hatton 108 — 12th century

The above references reflect only the current coverage of the online catalogue and may not be comprehensive.