000 00478nam a2200193Ia 4500
008 180116s1991 xxu||||| |||| 00| 0 eng d
020 _a0443044244
082 _aWA105
_bBAR
100 _a Barker D. J. P., Hall A. J.
245 _aPractical epidemiology
_b
250 _a4th ed.
260 _aEdinburgh
_bChurchill Livingstone
_c1991
300 _a173 p.
_b22 cm.
440 _a
_v
500 _a
520 _a Epidemiology
650 _aEpidemiology
906 _a2534
_b
_c
999 _c15265
_d15265