TY  - BOOK
AU  - Mittal,K.M.
TI  - Biogas systems: principles and applications 
SN  - 8122409474
AV  - TP359.B48 M58 1996
U1  - 665.776 21
PY  - 1996///
CY  - New Delhi
PB  - New Age International Ltd. Publishers
KW  - Biogas
N1  - Includes bibliographical references and indexes
ER  -