6 ^( ^. e3 ]# OPractical Law of Architecture, Engineering and Geoscience Second Canadian Edition by Samuels & Sanders (2011 Copyright) 3 v2 M" ?# W; A5 h1 f5 U7 f ; X, |" N: @) P7 f2 LCanadian Professional Engineering and Geoscience: Practice and Ethics Fifth Edition by Gordon C. Andrews (2009 Copyright) 1 m1 x m3 v2 e& E! d5 w 4 Q7 q; T" b5 r* ]* G2 _9 S7 Z谢谢!!