World Health Organization. (2007). Extremely low frequency fields (Primera edición.). Editorial World Health Organization.
Citación estilo ChicagoWorld Health Organization. Extremely Low Frequency Fields. Primera edición. Geneva: Editorial World Health Organization, 2007.
Cita MLAWorld Health Organization. Extremely Low Frequency Fields. Primera edición. Editorial World Health Organization, 2007.
Warning: These citations may not always be 100% accurate.