by Charles M. Perry, Henry Ridgely Evans. 152 pgs.
by Henry A. Pochmann, Henry Conrad Brokmeyer, Ralph Waldo Emerson, William Torrey Harris, Georg Wilhelm Friedrich Hegel. 144 pgs.
by Henry A. Pochmann, Arthur R. Schultz. 870 pgs.
by Harvey Gates Townsend. 300 pgs.
by Arthur E. Murphy. 400 pgs.
by Neil Gerard McCluskey. 318 pgs.
by Bruce Kuklick. 326 pgs.
by Paul Russell Anderson, Max Harold Fisch. 570 pgs.