Centre for Educational Research and Innovation. (1978). Innovation in in-service education and training of teachers: Practice and theory. Organisation for Economic Co-operation and Development ; sold by OECD Publications Center].

Centre for Educational Research and Innovation. Innovation in In-service Education and Training of Teachers: Practice and Theory. Paris : [Washington, D.C.: Organisation for Economic Co-operation and Development ; sold by OECD Publications Center], 1978.

Centre for Educational Research and Innovation. Innovation in In-service Education and Training of Teachers: Practice and Theory. Organisation for Economic Co-operation and Development ; sold by OECD Publications Center], 1978.