van Vugt, S. (2015). Red Hat Certified Engineer (RHCE) Exam Cram Video Workshop (1st edition.). Pearson IT Certification.
Cita Chicago Style (17a ed.)van Vugt, Sander. Red Hat Certified Engineer (RHCE) Exam Cram Video Workshop. 1st edition. Pearson IT Certification, 2015.
Cita MLA (9a ed.)van Vugt, Sander. Red Hat Certified Engineer (RHCE) Exam Cram Video Workshop. 1st edition. Pearson IT Certification, 2015.
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