A nice touch in this textbook is the appendix with useful formulas and tables.
Product Tag: Black and White Edition
DBT Skills Training Manual 2nd Edition by Marsha M. Linehan
This textbook is from a reputable publisher known for academic quality.
Data Communications Networking TCPIP 6th INTL ED ‘Free Ship from USA’
You will find that this textbook has a detailed index that saves you time.