00302nam a2200109 a 4500008004100000050001500041245002700056246005900083260002400142300001700166350000900183120416s1987    ||||||||||||||||| ||    u  aT 58.6 Com10aInformation technology  aCommonwealth Association of Surveying and Land Economy  aLondonbCASLEc1987  a102p. : ill.  a0.00