In Donna Leone’s The Jewels of Paradise, there is no publisher (and no Commissario Guido Brunetti either), but Caterina, the central character, knows the importance of a good publisher when she starts her library research in Venice.
The habits of the scholar had dominated Caterina’s selection. First check the publisher to see how serious the book was likely to be, and then a quick check: anything that appeared to be self-published or that lacked notes or bibliography, she left on the shelves. What scholars were thanked in the acknowledgements? The culling process had taken some time, leaving her delighted that so much had been written about Steffani.
No place for Wikipedia in the Biblioteca Marciana.
Donna Leone, The Jewels of Paradise, 2012