Gaya APA
Brownson, R., C., Petitti, D., B. (1998).
Applied Epidemiolgi teory to practice .
London and New York:
Oxford University Press.
Gaya MLA
Brownson, R., C., Petitti, D., B..
Applied Epidemiolgi teory to practice.
London and New York:
Oxford University Press,
1998.
Text.