Barker, D. J. P.
Practical epidemiology - 3rd ed. - Edinburgh Churchill Livingstone 1982 - 159 p. 22 cm.
0443023034
EPIDEMIOLOGY
614.4 / BAR
Practical epidemiology - 3rd ed. - Edinburgh Churchill Livingstone 1982 - 159 p. 22 cm.
0443023034
EPIDEMIOLOGY
614.4 / BAR