Dyfyniad APA

 Scott, C. (2010).  Optimal stress: Living in your best stress zone.  Wiley.

Dyfyniad Arddull Chicago

 Scott, Carol.  Optimal Stress: Living in Your Best Stress Zone.  Wiley, 2010.

Dyfyniad MLA

 Scott, Carol.  Optimal Stress: Living in Your Best Stress Zone.  Wiley, 2010.

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