000 00336nam a2200133Ia 4500
008 130223s9999 xx 000 0 und d
100 _aGuest, R.W., Spencer, S.B.
245 _aMilking machine system
260 _aPennsylvania
300 _a15 p.
440 _aNo. 74; Pennsylvania Agricultu
901 _pS10961
942 _cB
_2udc
999 _c127783
_d127783