000			003590000a22001570004500
245			_aElements of quantity surveying
100			_aWillis, A.J.
100			_aWillis, C.J.
250			_a7th ed.
260			_aLondon _bLockwood _c1978
300			_axii, 254p.: ill.
020			_a0258971177
080			_a69.003.12 _bW5
041			_aEN
942			_cBK
999			_c110792 _d110792