-. (1981). Energy from biological processes: Technical and policyoptions. Westview Press.
Chicago-čujuhus (17. p.)-. Energy from Biological Processes: Technical and Policyoptions. Boulder: Westview Press, 1981.
MLA-čujuhus (9. p.)-. Energy from Biological Processes: Technical and Policyoptions. Westview Press, 1981.
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