000 00446nam a2200193Ia 4500
005 20250220125600.0
008 250220s9999||||xx |||||||||||||| ||und||
020 _c£1.80
040 _aMAIN
041 _aEnglish
082 _a574
_bHEL
100 _aHeller, R.
245 _aNew trends biology teaching
260 _aParis
_b; Unesco
_c, 1971
300 _a376p.
_b, V.3
650 _aBiology
650 _aBiology Teaching
942 _cBK
999 _c34957
_d34957