Dyfyniad APA

Kallen, A. (2011). Understanding biostatistics. John wiley and sons.

Dyfyniad Arddull Chicago

Kallen, Anders. Understanding Biostatistics. Sussex: John wiley and sons, 2011.

Dyfyniad MLA

Kallen, Anders. Understanding Biostatistics. John wiley and sons, 2011.

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