000 00412nam a2200145Ia 4500
008 180712s9999 xx 000 0 und d
020 _a47333283
082 _a636.5
_bCHR
100 _aChristensen, N.H.
245 _aHealthy free range hens: a guide to disease control for the free range egg farme
260 _aNew Zealand
_bN.H.Christensen
_c1995
300 _avii, 114 p.
650 _aPoultry
942 _cR
999 _c19105
_d19105