Enlace original:
https://apps.who.int/iris/handle/10665/65692
Clarke, J. L
,
Herath, P. R. J
,
Wickramasinghe, M. B
,
World Health Organization
,
[Studies on DDT resistance in Anopheles culicifacies in Sri Lanka / by J. L. Clarke, P. R. J. Herath, M. B. Wickramasinghe]