00277nam a2200133Ia 4500020000900000082001000009100001700019245003400036250000600070260004200076300001300118500000600131650000600137  aNULL  a514.5  aLoney, S. L. 0aPlane Trigonometry : Part- II  a-  aLondonbMacmillan Publishing Co. Inc.  a211+xiii  a0  a-