000 00421nam a2200157Ia 4500
008 130223s9999 xx 000 0 und d
080 _a637.124
100 _aKeestra, J.
245 _aExamination of the ease of milking of frisian cattle friesland (with a summary)
260 _aWageningen
260 _c1963
300 _a154 p.
440 _aNo. 69.5; Netherlands Verslage
901 _pS6553
942 _cB
_2udc
999 _c121901
_d121901