.Timmreck, T. C. (2003). Planning, Program development, and evaluation: A handbook for health promotion, aging, and health services (2nd ed.). Jones and Bartlett.
Dyfyniad Arddull Chicago.Timmreck, Thomas C. Planning, Program Development, and Evaluation: A Handbook for Health Promotion, Aging, and Health Services. 2nd ed. Sudbury, Mass: Jones and Bartlett, 2003.
Dyfyniad MLA.Timmreck, Thomas C. Planning, Program Development, and Evaluation: A Handbook for Health Promotion, Aging, and Health Services. 2nd ed. Jones and Bartlett, 2003.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.