Dyfyniad APA

World Health Organization & Cassel, J. (1970). The Education and training of engineers for environmental health. World Health Organization.

Dyfyniad Arddull Chicago

World Health Organization and John Cassel. The Education and Training of Engineers for Environmental Health. Geneva: World Health Organization, 1970.

Dyfyniad MLA

World Health Organization and John Cassel. The Education and Training of Engineers for Environmental Health. World Health Organization, 1970.

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