Methods of harvesting white clover and ryegrass seed in a mixed swar d /
R.D. Bell
- Ashford, Kent : Wye College, 1964.
- 335-341 p. : ill. ; 25 cm.
- Reprint ; no. 279 .
Reprinted from the Journal of Agricultural eengineering Resaerch, vo l. 9, no. 4, 1964.