TY  - BOOK
ED  - United Nations Environment Programme.
TI  - Biogas fertilizer system: technical report on a training seminar in China
SN  - 9280710272
PY  - 1981///
CY  - Nairobi
PB  - United Nations Environment Programme
KW  - Biodegration
KW  - Fertilizers
KW  - China
ER  -