Cargo preference : hearings before the Subcommittee on Merchant Marine of the Committee on Merchant Marine and Fisheries, House of Representatives, Ninety-ninth Congress, first session on cargo preference oversight, July 16, 1985 ; Great Lakes cargo prefer

"Cargo preference : hearings before the Subcommittee on Merchant Marine of the Committee on Merchant Marine and Fisheries, House of Representatives, Ninety-ninth Congress, first session, on Cargo preference oversight, July 16, 1985 ; Great Lakes cargo preference, October 31, 1985 ; Maritime/agriculture cargo preference compromise and Great Lakes cargo preference, December 5, 1985"
"Cargo preference : hearings before the Subcommittee on Merchant Marine of the Committee on Merchant Marine and Fisheries, House of Representatives, Ninety-ninth Congress, first session on cargo preference oversight, July 16, 1985 ; Great Lakes cargo prefer"@en
"Cargo preference hearings before the Subcommittee on Merchant Marine of the Committee on Merchant Marine and Fisheries, House of Representatives, Ninety-ninth Congress, first session, on Cargo preference oversight, July 16, 1985 ; Great Lakes cargo preference, October 31, 1985 ; Maritime/agriculture cargo preference compromise and Great Lakes cargo preference, December 5, 1985"@en