Contributions to the methods of estimating losses caused by insect pests (Cephus pygmaeus L. and Harmolita noxiale Portsch.).
Häftad bok.
Gott skick. Ca 1928. Large 8vo. (148) pp. (Bulletin of Plant Protection. Vol.1, nr 2.) Author's dedication. In Russian with a long summary in English. [18F]