Practical building of methane power plants for rural energy independence /
Fry, L. John.
Practical building of methane power plants for rural energy independence / by L. John Fry. - Santa Barbara, CA : L. John Fry, 1974. - 96 p. ; 28 cm.
0960098410
Gas--producers.
Farm manure.
Practical building of methane power plants for rural energy independence / by L. John Fry. - Santa Barbara, CA : L. John Fry, 1974. - 96 p. ; 28 cm.
0960098410
Gas--producers.
Farm manure.
