| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Isotopic Studies of Azolla and Nitrogen Fertilization of Rice: Report of an FAO/IAEA/SIDA Co-ordinated Research Programme on Isotopic Studies of ... | 978-O-7923-2274-O (O-7923-2274-6) | 1993 | K.S. Kumarasinghe |