By Unknown
By Hannah Arendt, Karl Jaspers, Lotte Kohler
By Denis P. Burkitt, Hubert Carey Trowell
By Adel S. Sedra, K. C. A. Smith, K. C. Smith
By Skoog, Douglas A., West, Donald M.
By Berkowitz, Leonard
By Barnes, Robert D.
By Gibbs, Brian Michael, etc.
By Mackay, Eric V.
By Zeilik, Michael
By Kumar, Parveen, Clark, Michael LLewellyn
By Blood, D.C.
By Sankey, John Hart Peters, Savory, Theodore H.
By Nielsen, Jakob
By B. P. Lathi, Lathi, B. P.
By Sedra, Adel S., Smith, K. C. A., Smith, K. C. A.
By Allen, P.E., Holberg, Douglas R.