404. That’s an error.
The requested URL /books?id=vB6js26C_AcC&dq=editions:HARVARDHN3C2N&hl=iw&sitesec=reviews was not found on this server. That’s all we know.
/books?id=vB6js26C_AcC&dq=editions:HARVARDHN3C2N&hl=iw&sitesec=reviews