CCNA ICND2 Official Exam Certification Guide
CCNA ICND Exam Certification Guide (CCNA Self-Study)
CCNA ICND Exam Certification Guide (CCNA Self-Study, 640-811, 640-801)
CCNA ICND2 Official Exam Certification Guide (CCNA Exams 640-816 and 640-802) (2nd Edition)