Introduction of non-indigenous species into existing ecosystems hearing before the Subcommittee on Oversight and Investigations of the Committee on Merchant Marine and Fisheries, House of Representatives, One Hundred Second Congress, first session, on the introduction of non-indigenous species into existing ecosystems, the problems that are caused, and any solutions possible, with the zebra mussel as an example

"Introduction of non-indigenous species into existing ecosystems hearing before the Subcommittee on Oversight and Investigations of the Committee on Merchant Marine and Fisheries, House of Representatives, One Hundred Second Congress, first session, on the introduction of non-indigenous species into existing ecosystems, the problems that are caused, and any solutions possible, with the zebra mussel as an example"@en
"Introduction of non-indigenous species into existing ecosystems hearing before the Subcommittee on Oversight and Investigations of the Committee on Merchant Marine and Fisheries, House of Representatives, One Hundred Second Congress, first session ; on the introduction of non-indegenous species into existing ecosystems, the problems that are caused, and any solutions possible, with zebra mussel as an example"@en
"Introduction of non-indigenous species into existing ecosystems : hearing before the Subcommittee on Oversight and Investigations of the Committee on Merchant Marine and Fisheries, House of Representatives, One Hundred Second Congress, first session, on the introduction of non-indigenous species into existing ecosystems, the problems that are caused, and any solutions possible, with the zebra mussel as an example"@en