Further citrus canker studies
Doidge, E.M.
Further citrus canker studies - Pretoria 1929 - 1-31 p. - Union of South Africa Department of Agricultre. Bulletin No. 51 .
Further citrus canker studies - Pretoria 1929 - 1-31 p. - Union of South Africa Department of Agricultre. Bulletin No. 51 .