Bipyridin-ium herbicides
Summers, L.A.
Bipyridin-ium herbicides by L.A. Summers - London Academic Press 1980 - 449 p.
Herbicides
632.954:547.828 / S 955 B
Bipyridin-ium herbicides by L.A. Summers - London Academic Press 1980 - 449 p.
Herbicides
632.954:547.828 / S 955 B