000			00316nam a2200133 4500
999			_c9532 _d9532
003			OSt
005			20210702100704.0
008			210702b ||||| |||| 00| 0 eng d
020			_a9722968010150
082			_a721.832
245			_aArchitectural element : Stairs : 2
260			_bDAMDI Publishing House
942			_2ddc