There has been data ("Red Hat Certified System Administrator (RHCSA) Exam Preparation Course in a Book for Passing the RHCSA Exam - The How To Pass on Your First Try Certification Study Guide - Second Edition") available for this ISBN from the data sources that books-by-isbn.com uses, but not on the latest request on Thu Feb 20 17:37:24 2020, so the data displayed here has been removed .