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Biodegradation : hearing before the Subcommittee on Energy and Agriculture of the Committee on Small Business, House of Representatives, one hundredth Congress, Washington, DC, September 30, 1987
- "Biodegradation : hearing before the Subcommittee on Energy and Agriculture of the Committee on Small Business, House of Representatives, one hundredth Congress, Washington, DC, September 30, 1987"@en
- "Biodegradation : hearing before the Subcommittee on Energy and Agriculture of the Committee on Small Business, House of Representatives, One Hundredth Congress, Washington, DC, September 30, 1987"@en
- "Biodegradation hearing before the Subcommittee on Energy and Agriculture of the Committee on Small Business, House of Representatives, One Hundredth Congress, Washington, DC, September 30, 1987"@en