000 003550000a22001570004500
020 _a0-417-12830-6
060 _a100
082 _a635.21 HAR
100 _aHarris, P M
245 _aPotato crop: The scientific basis for improvement
260 _aLondon, Chapman & Hall
260 _c1978
300 _a730
650 _aPotato crop
942 _cBK
999 _c215113
_d215113