00270nam a2200097Ia 4500008004100000100001500041245004900056260003300105650001700138700001700155190829s9999||||xx |||||||||||||| ||und||  aSingh, S K 0aGeometry And Trigonometry: For B.S.C Classes  bMacmillan & CoaMadrasc1966  aTrigonometry  aNoronha, F J