RYDBERG, N. Weed harrowing in growing cereals. Uppsala: 1995 85 p. p. v. с.: tab., ill.
RYDBERG, N. Weed harrowing in growing cereals. Uppsala: 1995 85 p. p. v. с.: tab., ill.
RYDBERG, N. (1995) Weed harrowing in growing cereals, Uppsala: 85 p. p. v. с.: tab., ill.
RYDBERG, N. (1995). Weed harrowing in growing cereals. Significance of time of treatment, driving speed, harrowing direction and harrowing depth. Uppsala: 85 p. p. v. с.: tab., ill.
RYDBERG N. Weed harrowing in growing cereals: Significance of time of treatment, driving speed, harrowing direction and harrowing depth. Uppsala: 1995. p. 85 p. p. v. с.: tab., ill.