000 003060000a22001450004500
060 _a100
082 _a636.511 MAR
100 _aMarshall
245 _aEgg incubation
260 _aLondon, Poultry world
260 _c
300 _a72
650 _aEgg - incubation/ incubation - eggs
942 _cBK
999 _c363648
_d363648