658.1554
V291C
           Varadarajan, Dhulari Birundha
               Cost-benefit analysis of bio gas plants \ Dhulari Birundha Varadarajan - New Delhi : Ashish Publishing House, 1995.
               xi, 111p.
                ISBN: 81-7024-610-5

135542
                Subjects: Cost effectiveness-India; Biogas-India.