000 00424nam a2200145Ia 4500
008 180713s9999 xx 000 0 und d
082 _a005.133 B8
100 _a"Black, David A "
245 0 _aRuby Programming
260 _aNew Delhi
260 _b Dreamtech Press
260 _c2015
365 _b649
942 _cBK
999 _c116813
_d116813