Maramba, Felix D., 1897-
Biogas and waste recycling : the Philippine experience / Felix D. Maramba, Sr. ; contributing authors, Enrico D. Obias ... [et al.]. - Metro Manila, Philippines : Maya Farms Division, Liberty Flour Mills, c1978. - xx, 230 p. : ill.
Biogas--Philippines.
Biogas and waste recycling : the Philippine experience / Felix D. Maramba, Sr. ; contributing authors, Enrico D. Obias ... [et al.]. - Metro Manila, Philippines : Maya Farms Division, Liberty Flour Mills, c1978. - xx, 230 p. : ill.
Biogas--Philippines.