Dyfyniad APA

Jekel, J. F. K. (2007). Epidemiology biostatistics, and preventive medicine (3rd. ed.). Saunders Elsevier.

Dyfyniad Arddull Chicago

Jekel, James F. Katz. Epidemiology Biostatistics, and Preventive Medicine. 3rd. ed. Philadelphia: Saunders Elsevier, 2007.

Dyfyniad MLA

Jekel, James F. Katz. Epidemiology Biostatistics, and Preventive Medicine. 3rd. ed. Saunders Elsevier, 2007.

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