Sheep blow-flies of South Africa
Smit, B.
Sheep blow-flies of South Africa - Pretoria 1929 - 1-27 p. - Union of South Africa Department of Agricultre. Bulletin No. 47 .
Sheep blow-flies of South Africa - Pretoria 1929 - 1-27 p. - Union of South Africa Department of Agricultre. Bulletin No. 47 .