Deal, R. (2011). Osborne Ccna 640-801 Study Guide. McGraw-Hill.
Trích dẫn kiểu ChicagoDeal, Richard. Osborne Ccna 640-801 Study Guide. McGraw-Hill, 2011.
MLA引文Deal, Richard. Osborne Ccna 640-801 Study Guide. McGraw-Hill, 2011.
警告:这些引文格式不一定是100%准确.