000 00299nam a2200133Ia 4500
008 161121s9999 xx 000 0 und d
100 _aGRAY. P
245 0 _aEncyclopedia of biological sciences
260 _cVan Mostrand Reinold
365 _b0
650 _aNIL
652 _a#N/A
942 _cBK
999 _c32928
_d32928