000 004010000a22001810004500
060 _a100
082 _a574 BAE
100 _aBaer, Adela S
100 _aHazen, William E
100 _aJameson, David L
100 _aSloan, William C
245 _aCentral concepts of biology
260 _aNewyork, The macmillan co.
260 _c1971
300 _a385
650 _aBiology
942 _cBK
999 _c213251
_d213251