Greenberg Jerrold S. (2010). Comprehensive Stress Management. NewYork: McGraw Hill.
Dyfyniad Arddull ChicagoGreenberg Jerrold S. Comprehensive Stress Management. NewYork: McGraw Hill, 2010.
Dyfyniad MLAGreenberg Jerrold S. Comprehensive Stress Management. NewYork: McGraw Hill, 2010.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.