665.776
P911B
           Prabad, Vishambar
               Bio-gas plant or dung resource planing (in hindi) ek prachin Bharatiya yojna mein sudhar \ Vishambar Prabad - [S.l.] : Sarva Sulabh Sahitya Sadan, [s.n.].
               161p.
C9126
                Subjects: Biogas; Biogas industry; Biomass chemicals.