. "John J. Crittenden. The struggle for the union" . "John J. Crittenden the struggle for the Union"@en . . . . . . . . "John J. Crittenden. The Struggle for the Union. [With plates, including portraits.]"@en . . . "John J. Crittenden; the struggle for the Union" . "John J. Crittenden; the struggle for the Union"@en . . "John J. Crittenden : the struggle for union" . . . . "John J. Crittenden : the struggle for the Union" . . "John J. Crittenden : the struggle for the union" . . . .