Gaya APA

R.Davis, R, C, B, /, P, L, R, /, J. (1998). chronic disease epidemiology and control (second ed.) . USA: United book press.

Gaya MLA

R.Davis, Ross, C., Brownson, /, Patrick, L., Remington, /, Jame. "chronic disease epidemiology and control (second ed.)". USA: United book press, 1998. .