Research sources by Harvard system.
British Broadcasting Corporation (BBC). (2014). How to Pitch.Available: http://www.bbc.co.uk/commissioning/radio/pitching-ideas/how-to-pitch.shtml. Last accessed 18/12/2014.
British Broadcasting Corporation (BBC). (2014). Writing Radio Drama Scriptwriting tips. Available: http://www.bbc.co.uk/writersroom/write-a-script/writing-radio-drama. Last accessed 02/12/2014
Hortsman, Rosmary (1997). Writing for Radio. London: A&C Black. p34.