000 00319nam a2200121Ia 4500
008 191031s9999 xx 000 0 und d
100 _aSilver (WS) and Sowroder etc Ed
245 0 _aPractical application of Azolla for rice production
260 _bMartinus Nijhoty
260 _c1984
365 _b660
942 _cBK
999 _c215294
_d215294