000			00302nam a22001217a 4500
999			_c668 _d668
020			_a978-1-68251-402-3
082			_aCir. 025.04 A77 C2018
100			_a3G E-learning LLC
245			_aData center management
260			_aUSA: _b3G E-learning LLC, _cC2018.
300			_ax, 256p. : ill ; 24cm
942			_cBK