Practical epidemiology
Barker, D. J. P. (David James Purslove)
Practical epidemiology D.J.P. Barker. - 2nd. edition. - Edinburgh: Churchill Livingstone, 1976. - 180 pages : illustrations ; 19 cm.
0443019320
Epidemiology
Practical epidemiology D.J.P. Barker. - 2nd. edition. - Edinburgh: Churchill Livingstone, 1976. - 180 pages : illustrations ; 19 cm.
0443019320
Epidemiology
