000 00319nam a2200121Ia 4500
005 20260205042519.0
008 260111s9999||||xx |||||||||||||| ||und||
100 _aNATIONAL COUNCIL OF EDUCATIONAL RESEARCH
245 0 _aBIOLOGICAL SCIENCE
260 _aN.Y.
_bHARCOURT BRACE AND WORLD
_c1963
300 _a0
942 _cBK
999 _c35166
_d35166