By Martin Pugh
By PETER REDGROVE
By I. Schapera
By Harald Tambs-Lyche
By P. D. Ouspensky
By Michel Waldberg, S. Cox
By Parminder Bhachu
By David H. Hargreaves
By H. J. Dyos, Michael Wolff
By Gilbert Jessup, Helen Jessup
By Adrian Room
By Peter Russell
By Eric Partridge
By Jean Piaget, C. Gattegno, F.M. Hodgson
By Jane Lewis
By Schools Council
By Mark Cook
By Raphael Samuel, Gareth Stedman Jones
By Professor Chris Pickvance
By Norman Long
By Tom W. Goff
By Martin Bulmer
By John James
By James Moore
By Michele Jamal
By Russell Keat, Professor John Urry
By Ted Benton
By John Hart, Diane Richardson
By Carol Smart