Kitabu hiki huenda hakitapatikana katika uchapishaji.
This FAO report is from a study tour of 15 communes in the Peoples' Republic of China in 1978 to specifically see Azolla production and biogas production.
81 pages, illustrated, photos
FAW Soils Bulletin 41
Maelezo ya Uchapishaji
- Limechapishwa: 1979
- Mchapishaji: Food and Agriculture Organization of the United Nations
- ISBN-10: 9251007217
- ISBN-13: 978-9251007211
- Dewey Decimal: 665.776
- Maktaba ya ECHO: 665.776 FAO