| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Animal Manure on Grassland and Fodder Crops.Fertilizer or Waste?: Proceedings of an International Symposium of the European Grassland Federation, ... | 978-9O-247-3568-6 (9O-247-3568-8) | 1987 | R.J. Unwin · T.A. van Dijk · G.C. Ennik |