TY  - BOOK
AU  - Jean Andrews et.al.,
TI  -  CompTIA A+ guide to IT technical support 
SN  - 13-978-0-357-10829-1
U1  - Cir. 004 AN565 C2020 
PY  - 2020///
CY  - Boston, USA 
PB  - Cengage learning 
ER  -