Honestly, for about the same price (or usually less) as a new Haynes or Chilton you can usually find a good used Factory Service Manual off eBay for what he has and it will have 1000x the information as the generic manuals.
1993 Cutlass Supreme
https://www.ebay.com/itm/284923758122?hash=item4256c7862a:g:QusAAOSwt0hi7X2l&amdata=enc%3AAQAHAAAAsMqhcfRUaabaupH6jcZxApwZ70y62X5rQomPyQG8xf7dWtT5THvWTgOe0RoioyzDSJGklypBPfGkD4QFWALNO0SXU8cTVm8tVj1Rd%2FMXjFXHrdG0EEK5MjlbLroKcAmqdSdKZiQ4qCS9O1jsBulomatKnQMgOQkARdcmEQqreH7mToXAWmidH2YWG8vp0nZt8%2FkG1Tf5J%2BQ%2FQLJycA5M4k%2Fl%2FlW19Ih9SgGym8COyHQd|tkp%3ABk9SR6y9s4m3YQ