| Titel | ISBN-13 (ISBN-10) | Erschei- nungsjahr | andere Autoren |
|---|---|---|---|
| Economics of existing farming systems of Uttar Pradesh: Characterization of bio-physical and socio economic environment of existing farming systems in Indo-Gangatic Plain of Uttar Pradesh | 978-3-8383-8423-8 (3-8383-8423-7) | 2010 | S. P. Singh |