000 00361nam a2200157Ia 4500
008 210210b1952 xxu||||| |||| 00| 0 eng d
041 _aeng
082 _a512/64
100 _aRAO (Subramanyan)
245 _aSubsidiary trigonometry
260 _a-
_b-
_c1952
650 _atrigonometry
650 _aSubsidiary
690 _aTrigonometry
906 _a007267
999 _c139677
_d139677