The environmental impact of tsetse control operations: A report on present knowledge
Jan H. Koeman, F.R.M. Balk, Willem Takken · 1977
The environmental impact of tsetse control operations :a report on present knowledge , The environmental impact of tsetse control operations :a report on present knowledge , مرکز فناوری اطلاعات و اطلاع رسانی کشاورزی