Delwedd Flaen

Malaria control on impounded water

Manylion Llyfryddiaeth
Awdur Corfforaethol: U.S. Public Health Service Tennessee Valley Authority. Health and Safety Dept
Fformat: Llyfr
Iaith:Saesneg
Cyhoeddwyd: Washington Government Printing Office 1947
Pynciau:
Malarial fever > Prevention.
Mosquitoes > Extermination.
Reservoirs.