TY  - GEN
AU  - Khandelwal , K.C. 
AU  - Mahdi , S.S.  
TI  - Biogas technology Vol I: a practical handbook
SN  - 0074517236
U1  - 665.776 
PY  - 1986///
CY  - New Delhi
PB  - Tata McGraw-Hill
KW  - Biogas Technology
ER  -