By Unnamed
By Steiner, Robert, Schmidt, Philip
By Sharpley, G. D. A.
By Caret, Robert L.
By Plummer, David T.
By Christian B Allan, Wolfgang Lutz
By Gregerman, Alan S.
By Chadwick, Gloria
By Hopkins, Claude C.
By Leventhal, Lance A.
By George, Michael L., John Maxey, David Rowlands, Mark Price
By E R G Eckert
By S. Seely
By Peter Gray
By Geier, Michael
By Roussy de Salas
By Charles E. Rohrs
By A.M. McFarland
By Katz, rabinowitch
By Sidney Siegel
By Drummond, Archie, Anne Coles-Mogford with Ida Scattergood.
By Rensis Likert
By Deming, Vasudha K.
By Morris, Noel
By Juran, J. M., Joseph M., Godfrey, D. A. Blanton
By P. T. Matthews
By Rackham, Neil
By Paul W. Hodge
By Julius Adams Stratton
By G. M. Barrow