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edited by Derick Unwin and Ray McAleese ; foreword by Geoffrey Hubbard
Greenwood Press 1988 2nd ed
Available at 25 libraries
[edited by] Derick Unwin and Ray McAleese
Greenwood Press 1978
Available at 5 libraries
Macmillan Press 1978
Available at 46 libraries
P.J. Tansey and Derick Unwin
Methuen Educational 1969 Education paperbacks
: pbk
Available at 4 libraries
Methuen Educational 1969
: hard
Available at 7 libraries
edited by Derick Unwin ; with a foreword by Sir Brynmor Jones
McGraw-Hill c1969
Available at 13 libraries
edited by Derick Unwin and John Leedham
Methuen 1967 Aspects of educational technology [v. 1]
Available at 38 libraries
John Leedham, Derick Unwin
Longmans c1965 Education today
