1. Regional tests with contact and systemic tobacco sucker control agents tobacco;Steffens;Tobacco Sci,1969
2. Photometric determination of molybdenum by acetone reduction of the thiocyanate;Ellis;Anal Chem,1950
3. Regional tests with contact and systemic tobacco sucker control agent Flue - cured tobacco;Steffens;Tobacco Sci,1969
4. Multiple range and multiple F tests;Duncan;Biometrics,1955
5. Regional tests with contact and systemic oobacco sucker control agents Maryland Tobacco;Spaulding;Tobacco Sci,1970