000 007340a00a22003130004500
010 _aB
024 _aM
027 _qP
210 _aRao, A.N.
245 _aAgriculture and biology teaching
100 _aRao, A.N.
100 _aPritchard, A.J.
260 _aUNESCO
_bParis
260 _c1984
300 _a64,tables,maps
490 _aScience and Technology Education Document Series 11
306 _aBiology teaching
306 _aAgriculture teaching
306 _aAgroecosystems
306 _aFood productions
306 _aBiotechnology
016 _a631 RAO
015 _aP-0485
999 _c4089
_d4089
650 _aAgriculture
041 _aeng
080 _a631