Columbia subject headings:
Brazil. Serviço de Malária do Nordeste.
Malaria--Brazil.
Mosquitoes.
Harvard subject headings:
Brazil. Serviço de Malária do Nordeste.
Malaria--Brazil.
Mosquitoes
Princeton subject headings:
Brazil. Serviço de Malária do Nordeste
Malaria--Brazil.
Mosquitoes.