000 00302 am a2200121 a 4500
100 1 _aCalder, A.
245 1 _aProducing pork from boar pigs
260 _aSalisbury
_c1963
300 _a1-4 p.
942 _2udc
_cB
440 _aPigs Federal Ministry of Agriculture. Bulletin No. 2198
901 _aS7665
999 _c110264
_d110264