There has been data ("Basic Administration for Citrix XenApp 6 Certification Exam Preparation Course in a Book for Passing the 1Y0-A18 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 Thu Dec 26 21:17:35 2019, so the data displayed here has been removed .