Barnett, A., Pyle, L., & Subramanian, S. K. (1978). Biogas technology in the third world: A multidisciplinary review. International Development Research centre.
Citace podle Chicago (17th ed.)Barnett, Andrew, Leo Pyle, a S. K. Subramanian. Biogas Technology in the Third World: A Multidisciplinary Review. Ottawa: International Development Research centre, 1978.
Citace podle MLA (9th ed.)Barnett, Andrew, et al. Biogas Technology in the Third World: A Multidisciplinary Review. International Development Research centre, 1978.
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