TY - BOOK T1 - Biogas technology A1 - Nijaguna, B.T. LA - English PP - New Delhi PB - New Age YR - 2002 UL - http://discoverylib.upm.edu.my/discovery/Record/291034 OP - 287 CN - TP359 B48N691 SN - 8122413803 (pbk) KW - Biogas. ER -