00477nam a2200181   450000500170000000700040001700800040002102000150002504000090004005000150004910000190006424500510008326000470013430000170018144000210019852100420021965000340026120150629151718.0000000  a0237508265  aUOEL  aT353b.A83  aAshworth, V. J  aIntroductory Technical DrawingcV. J, Ashwarth  aLondon ;bEvans Brothers Limited ,cc1985.  a96p. :bill.  aBasic Technology  a2:Geometrical and Engineering Drawing  2Technical DrawingxTechnology