00251nam a22001097a 4500003000400000005001700004008004100021040000800062100001400070245002900084260002800113OSt20230524155634.0230524b        xxu||||| |||| 00| 0 eng d  cN/A  aBird .J.O  aTechnician Mathematics 1  aNew YorkbLongmanc1977