| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Systems approaches for agricultural development: Proceedings of the International Symposium on Systems Approaches for Agricultural Development, 2-6 ... for Sustainable Agricultural Development) | 978-0-7923-1880-4 (0-7923-1880-3) | 1992 | F.W.T Penning de Vries · P.S. Teng |
| Systems approaches for agricultural development: Proceedings of the International Symposium on Systems Approaches for Agricultural Development, 2–6 ... for Sustainable Agricultural Development) | 978-0-7923-1881-1 (0-7923-1881-1) | 1992 | Frits Penning de Vries · Paul Teng |