000			00325nam a22001097a 4500
008			150912b xxu||||| |||| 00| 0 eng d
020			_a0075488191
082			_a917 .1 DER
100			_aDERRY, WILLIAM. _cWILLIAM DERRY. AND CHARLES NASH.
245			_aGEOCANADA:
260			_aTORONTO, _bMcGRAW -HILL RYERSON LIMITED: _c1990.
999			_c2943 _d2943