Dyfyniad APA

Jekel, J. F. (2001). Epidemiology, biostatistics, and preventive medicine. Philadelphia: Saunders.

Dyfyniad Arddull Chicago

Jekel, James F. Epidemiology, Biostatistics, and Preventive Medicine. Philadelphia: Saunders, 2001.

Dyfyniad MLA

Jekel, James F. Epidemiology, Biostatistics, and Preventive Medicine. Philadelphia: Saunders, 2001.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.