000			00321nam a22001457a 4500
003			OSt
020			_a9780486404738
082			_a742 _bNOR
100			_aNORLING, ERNEST R.
245			_aPERSPECTIVE MADE EASY
260			_aNEW YORK _bDOVER PUBLICATIONS, INC _c2020
300			_a203
650			_aDESIGN
942			_2ddc _cB
999			_c87493 _d87493