000 00344nam a2200133Ia 4500
008 180611s9999||||xx |||||||||||||| ||und||
020 _a0 11 242556 9
041 _aen
082 _a633.1
245 4 _aThe Nitrogen Requirement of Cereals
260 _aLondon
_bMinistry of Agriculture, Fish
_ceries and F1984
300 _ax, 298p.
942 _cLL
999 _c2722
_d2722