404. That’s an error.
The requested URL /books?id=_dYAAAAAYAAJ&dq=editions:HARVARDHN3AYZ&hl=et&output=html_text&lr=&as_brr=0&sitesec=reviews was not found on this server. That’s all we know.
/books?id=_dYAAAAAYAAJ&dq=editions:HARVARDHN3AYZ&hl=et&output=html_text&lr=&as_brr=0&sitesec=reviews