000 00448nam a2200181Ia 4500
008 150909s9999 xx 000 0 und d
041 _aEnglish
082 _a630
082 _bKOR/CO
100 _aKorenka D.A
100 _eAuthor
245 _aComparative agronomic aspect of new and conventional forms of fertilizer
260 _a-
260 _bU S Department of Agriculture
260 _c1973
650 _aAgronomy
942 _cBK
999 _c231240
_d231240