By Dennis Danielson (University of British Columbia, Vancouver)
By K. F. Riley (University of Cambridge), M. P. Hobson (University of Cambridge), S. J. Bence
By Elisa New (University of Pennsylvania)
By David Morley, Philip Neilsen (Queensland University of Technology)
By David Crystal
By North American Cambridge Classics Project
By Geoffrey Howson, Christine Keitel, Jeremy Kilpatrick
By W. G. Rees
By School Mathematics Project
By David A. Brannan (The Open University, Milton Keynes), Matthew F. Esplen (The Open University, Jeremy J. Gray (The Open University
By Bryan Gilliam (Duke University, North Carolina)
By Geoffrey Durrant
By K. Ajdukiewicz
By Paul Ricoeur, John B. Thompson
By Richard J. Watts (Universitat Bern, Switzerland)
By Graeme Shanks (University of Melbourne), Peter B. Seddon (University of Melbourne), Leslie P. Willcocks (University of Warwick)
By J. A. Steers
By E. A. Maxwell
By Thomas A. Garrity (Williams College, Massachusetts), Lori Pedersen
By Hilary Putnam
By Helen Herbert
By Nellie Roberts