Methane Digesters for Fuel Gas and Fertilizer with complete instructions for two working models
Fry, L. John; Merrill, Richard
Methane Digesters for Fuel Gas and Fertilizer with complete instructions for two working models
ISBN:
Book Number: 64942
L. John Fry, Santa Barbara, 1973. 4to. stapled wraps. 47pp. b/w illus. Good, top corner bumped, spine faded, a few marks on cover.
Keywords: power energy biology digesters carbon sludge
Price: $30.00