National Academy of Sciences (U.S.). (1977). Methane generation from human, animal, and agricultural wastes: Report of an ad hoc panel of the Advisory Committee on Technology Innovation, Board on Science and Technology for International Development, Commission on International Relations, National Research Council. National Academy Sciences.
Παραπομπή σε μορφή Chicago (17η εκδ.)National Academy of Sciences (U.S.). Methane Generation from Human, Animal, and Agricultural Wastes: Report of an Ad Hoc Panel of the Advisory Committee on Technology Innovation, Board on Science and Technology for International Development, Commission on International Relations, National Research Council. Washington: National Academy Sciences, 1977.
Παραπομπή σε μορφή MLA (9th εκδ.)National Academy of Sciences (U.S.). Methane Generation from Human, Animal, and Agricultural Wastes: Report of an Ad Hoc Panel of the Advisory Committee on Technology Innovation, Board on Science and Technology for International Development, Commission on International Relations, National Research Council. National Academy Sciences, 1977.