TY  - SER
AU  - Knowland, B.
TI  - Traditional fuels: present data, past experience and possible strategies
T2  - A.I.D. research & development abstracts ; 
PY  - 1981///
CY  - Washington-US : 
PB  - United States Agency for International Development, 
N1  - Artículo dentro de: Environment & natural resources-forest resources reports; Sumarios de investigación
ER  -