NATIONAL, INSTITUTE OF INDUSTRIAL RESEA
HAND BOOK ON BIO GAS AND ITS APPLICATIONS - NEW DELHI, NIIR 2007 - pages 454
BIOGAS PLANTS
ENGINEERING DESIGN OF BIOGAS
631.87 NII/HA
HAND BOOK ON BIO GAS AND ITS APPLICATIONS - NEW DELHI, NIIR 2007 - pages 454
BIOGAS PLANTS
ENGINEERING DESIGN OF BIOGAS
631.87 NII/HA