. . "Thomas, Bertie and the Bumpy Line/"@en . . . . . "Thomas and Bertie"@en . "Thomas, Bertie and the Bumpy Line, later retitled Thomas and Bertie, is a board book illustrated using photographs from the television series."@en . "Thomas, Bertie and the Bumpy Line, later retitled Thomas and Bertie, is a board book illustrated using photographs from the television series."@en . "1992"^^ . . . . "Thomas, Bertie and the Bumpy Line"@en . ""@en . . . . .