1. Transmission of papaya bunchy top by a leafhopper of the genus Empoasca;Adsuar;Science,1946
2. New developments in treating pecan rosette with chemicals;Alben;Phytopathology,1932
3. A new walnut and butternut virus disease;Zajaczek;U. S. Bur. Plant Ind. Rep.,1947
4. Control of Dutch Elm Disease and elm phloem necrosis;Zajaczek;U. S. Dept. Agr. Leaflet,1952
5. Virus diseases and noninfectious disorders of stone fruits in North America;Zajaczek;Agr. Handb.,1976