Dyfyniad APA

Ryan, T. P. (2007). Modern experimental design. John Wiley & Sons.

Dyfyniad Arddull Chicago

Ryan, Thomas P. Modern Experimental Design. New Jersey: John Wiley & Sons, 2007.

Dyfyniad MLA

Ryan, Thomas P. Modern Experimental Design. John Wiley & Sons, 2007.

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