Ashok Kumar, N
Economics of bio-gas evaluation / N. Ashok Kumar - Pune Times Research Foundation 1988 - 66p ill. 22 cm.
Includes bibliographic references
Biogas
333.82 / ASH
Economics of bio-gas evaluation / N. Ashok Kumar - Pune Times Research Foundation 1988 - 66p ill. 22 cm.
Includes bibliographic references
Biogas
333.82 / ASH