APA (7th ed.) Citation

World Health Organization, International Radiation Protection Association, & United Nations Environment Programme. (1981). Radiofrequency and microwaves. World Health Organization.

Chicago Style (17th ed.) Citation

World Health Organization, International Radiation Protection Association, and United Nations Environment Programme. Radiofrequency and Microwaves. Geneva: World Health Organization, 1981.

MLA (9th ed.) Citation

World Health Organization, et al. Radiofrequency and Microwaves. World Health Organization, 1981.