APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (8th ed.) Citation

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