LEADER 00000nam 2200193 a 4500 001 0899926 007 t 008 000606 0 1990 000 eng 020 0521383595 040 BLAISE 050 4 RG 135 E5 245 00 Embryo experimentation /|cPeter Singer ... [et al.]. 260 Cambridge :|bCambridge University Press,|c1990. 300 263p. 700 1 Singer, Peter,|d1946- 946 6XX absent
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