There has been data ("CCIE Cisco Certified Internetwork Expert Voice Certification Exam Preparation Course in a Book for Passing the CCIE Exam - The How To Pass on Your First Try Certification Study Guide") available for this ISBN from the data sources that books-by-isbn.com uses, but not on the latest request on Fri Aug 2 19:34:01 2019, so the data displayed here has been removed .