Syngress Media, I. (2001). Red hat certified engineer linux Study Guide. McGraw-Hill.
Trích dẫn kiểu ChicagoSyngress Media, Inc. Red Hat Certified Engineer Linux Study Guide. McGraw-Hill, 2001.
Deismireacht MLASyngress Media, Inc. Red Hat Certified Engineer Linux Study Guide. McGraw-Hill, 2001.
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