404. That’s an error.
The requested URL /books?id=6pw2AAAAIAAJ&dq=editions:STANFORD36105060198871&output=html_text&lr=&sitesec=reviews was not found on this server. That’s all we know.
/books?id=6pw2AAAAIAAJ&dq=editions:STANFORD36105060198871&output=html_text&lr=&sitesec=reviews