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037 _aTextbook
040 _aFMSL
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041 _aeng
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084 _aBobX:8D J4
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100 _aAyres F
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245 0 _aPlane and spherical trigonometry: Theory amd problems
_cAyres F
260 _aNY
_bNY, Schaum
_c1954
300 _a207p
942 _cTB
_hBobX:8D J4
999 _c1269818
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