Assar, M. (1971). Guide to sanitation in natural disasters. World Health Organization.
Cita Chicago (17th ed.)Assar, M. Guide to Sanitation in Natural Disasters. Geneva: World Health Organization, 1971.
Cita MLA (8th ed.)Assar, M. Guide to Sanitation in Natural Disasters. World Health Organization, 1971.
Atenció: Aquestes cites poden no estar 100% correctes.