Chahal, . D. S. (1991). Food, Feed and Fuel From Biomass. TYK Prokason.
Tohutoru Kātū Chicago (17th ed.)Chahal, D. S. Food, Feed and Fuel From Biomass. India: TYK Prokason, 1991.
Tohutoro MLA (9th ed.)Chahal, D. S. Food, Feed and Fuel From Biomass. TYK Prokason, 1991.
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