'... 10th in a series of annual lectures'. - Text in English and German.
Freedom and restraint in broadcasting : the British experience : the 'Queen's lecture' given by Sir Michael Swann, chairman of the BBC, in the Kongresshalle, Berlin, 29 May 1975 by Michael Swann Swann. ISBN 0563170115. Published by British Broadcasting Corporation in 1975. Publication and catalogue information, links to buy online and reader comments.