Text this: Olav Arild Abrahamsen: Sørlandsk skipsfart 1920-2020.<string-name name-style="western">Olav Arild Abrahamsen</string-name> <source>Sørlandsk skipsfart 1920-2020.</source> <publisher-name>Oslo. Cappelen Damm, 2022. ISBN 9788202566272</publisher-name>