Dutta Somma Biogas The Indian N G O experience - New Delhi Tata Energy Research Institute India 1997 - xv,128p. Appendix p. 111-28 cm. - Tate Encrgy Research Insitute Publication . ISBN: 8185419302 Source: General Book Subjects--Topical Terms: Gas Industry Dewey Class. No.: X9(F558).2.N9, N7