00780nam a2200253Ia 45000010006000000050017000060070003000230080041000260200007000670400025000740410008000990820017001071000022001242450086001462500017002322600039002493000022002886530016003106530020003267000020003469420012003669520131003789990017005094445320240114003630.0ta090227s1912           g     b000 u 903 u  cHB  aCotton College,Assam  a903  a514bB 644 N  aBorchardt, W.G. . 0aA New Trigonometry for Schools /cW.G. Borchardt,A.D. Perrott.hTextual Documents  a8th rev ed /  aLondon :bG.Bell and Sons ,c1912.  axi,400p. ;c20cm.  aMathematics  aT/G-Mathematics  aPerrott, A.D. .  2ddccBK  001040708Circulation (T/G)aSKBLbSKBLd2012-02-01f00000l0o514 B 644 Np3042/Newr2024-01-14 00:00:00t1w2012-02-01yBK  c44419d44419