00269nam a2200121Ia 4500008004100000100001500041245002300056260002300079300000900102650001200111942000700123999001700130190216s9999||||xx |||||||||||||| ||und||  aLoney. S.L 0aPlane Trigonometry  bS Chand & Coc1988  a327p  aPhysics  cBK  c33160d33160