Yellows-resistant verieties of cabbage in the early and midseason roundhead groups /
Walker, J. C
Yellows-resistant verieties of cabbage in the early and midseason roundhead groups / by J. C. Walker and J. P. Jolivette - Washington : Department of Agriculture - 20 p. - EUA. Dept. of Agriculture Circular; 775 .
202844
Col -- Variedades
Yellows-resistant verieties of cabbage in the early and midseason roundhead groups / by J. C. Walker and J. P. Jolivette - Washington : Department of Agriculture - 20 p. - EUA. Dept. of Agriculture Circular; 775 .
202844
Col -- Variedades