000			00358nam a2200145Ia 4500
008			130223s9999 xx 000 0 und d
100			_aGerber, J.N.
245			_aCulling of hens in laying batteries
260			_aPretoria
260			_c1967
300			_a0.666666667
440			_aNo. 387; AfricaS Department of
901			_pS15793
942			_cB _2udc
999			_c119390 _d119390