000			00381nam a2200157Ia 4500
008			130223s9999 xx 000 0 und d
080			_a636
100			_aOwen, J.B.
245			_aAnimal production-a study of animal systems
260			_aCambridge
260			_c1971
300			_a1-20 p.
440			_aCambridge University School of
901			_pS20425
942			_cB _2udc
999			_c152586 _d152586