By Ludwig Wittgenstein
By Wallace Eyre
By Various Authors
By Ellis, Harold & Roy Yorke Calne.
By Donald C Plumb
By Mitchell, Bruce and Robinson, Fred C.
By Edited by Arpad Kadarkay
By Robert E. Goodin, Philip Pettit
By Derek Gregory
By Colin Price
By Ramberg, Bjorn
By Jeremy Treglown
By Ellis & Feldman
By Rowland Purton
By John Locke
By Hugh Jolly
By J M Thompson
By Unidentified Author
By Crystal, David
By Preston, Peter
By Fontana, David
By Lars Andersson, Peter Trudgill
By John Anderson
By Henry Pluckrose
By Roderick Hunt
By M. Riddington, M. Grier