000 00278 a2200109 4500
008 190115b xxu||||| |||| 00|
100 _aAlvin Nason
245 _a Essentials of modern biology. /
_cAlvin Nason
260 _aNew york
_bJ. Wiley,
_c1968
300 _a608p.
942 _2ddc
_cBK
999 _c7813
_d7813