Gaya APA
Bonita, Ruth. (2006).
Basic epidemiology (ed. 2).
China:
WHO.
Gaya Chicago
Bonita, Ruth.
Basic epidemiology.
ed. 2
China:
WHO,
2006.
Text.
Gaya MLA
Bonita, Ruth.
Basic epidemiology.
ed. 2
China:
WHO,
2006.
Text.
Gaya Turabian
Bonita, Ruth.
Basic epidemiology.
ed. 2
China:
WHO,
2006.
Print.