00561nam a2200205 a 450000100060000000300080000600500170001400800410003103500190007204000270009104100080011808200250012610000190015124500500017026000430022030000360026350000200029965000180031970000180033770810BD-RjUL20211209082037.0170420s1982    nyua          001 0 eng    a(BD-RjUL)71024  aDLCcDLCdBD-RjULbeng  aeng00a516.24223bSIT 19431 aSiddons, A. W.10aTrigonometry /cA. W. Siddons and R.T. Hughes  aNew york  :bat the university,c1943.  aviii,  404 p. :bill. ;c25 cm.  aIncludes index. 0aTrigonometry.  aHughes, R.T.