Fitzpatrick, M., & Bonnefoy, X. (1999). Environmental health services in Europe 4: Guidance on the development of educational and training curricula. World Health Organization, Regional Office for Europe.
Dyfyniad Arddull ChicagoFitzpatrick, Martin, and Xavier Bonnefoy. Environmental Health Services in Europe 4: Guidance on the Development of Educational and Training Curricula. Copenhagen: World Health Organization, Regional Office for Europe, 1999.
Dyfyniad MLAFitzpatrick, Martin, and Xavier Bonnefoy. Environmental Health Services in Europe 4: Guidance on the Development of Educational and Training Curricula. World Health Organization, Regional Office for Europe, 1999.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.