000 00285nam a2200121Ia 4500
008 220204s9999 xx 000 0 und d
082 _a631
_bGRO
100 _aGROUNDS, Roger
245 0 _aAgriculture.
260 _aSingapore
_bMcGraw Hill
_c1971
650 _aAgriculture
942 _cBK
999 _c22874
_d22874