000 00369nam a2200133Ia 4500
008 161001s1971 xx 000 0 und d
082 _a636.514 S45U
100 _aSimons,P.C.M
245 _aUltrastructure of the hen eggshell and its physiological interpretation
260 _aWageningen
_bICAR
_c1971
300 _a46p.
650 _aEggs - Production
942 _2ddc
_cC
999 _c2319
_d2319