Biogas Technology : problems and prospects :proceedings
VYAS, S. K
Biogas Technology : problems and prospects :proceedings - Ludhiana 1987 - 172p
BIOGAS -- CONGRESSES
BIOGAS -- CONGRESSES GAS AS FUEL -- CONGRESSES
665.77 N28B
Biogas Technology : problems and prospects :proceedings - Ludhiana 1987 - 172p
BIOGAS -- CONGRESSES
BIOGAS -- CONGRESSES GAS AS FUEL -- CONGRESSES
665.77 N28B