000 00287nam a2200109Ia 4500
008 201231s9999 xx 000 0 und d
100 _aClough- Smith, J. H.
245 3 _aAn introduction to Sherical trigonology
260 _aGlawgow
_bBrown, Son & Ferguson
300 _a114
942 _cBK
999 _c10176
_d10176