Gaya APA

Katz, D, L. (2014). E-BOOK Jekel’s Epidemiology, Biostatistics, Preventive Medicine, and Public Health Fourth Edition . : .

Gaya MLA

Katz, David, L.. "E-BOOK Jekel’s Epidemiology, Biostatistics, Preventive Medicine, and Public Health Fourth Edition". : , 2014. Text.