Behind advertising scenes.
Marketing research. 7th edition.
McGraw-Hill, Maidenhead, UK, p. 250.
Codes of conduct and graphology.
8th British Symposium of Graphology Proceedings, British Institute of Graphologists. St Anne's College Oxford 2-3 Sept 2005.
British Institute of Graphologists.
Bradley, Nigel and Wilson, Alan
Response rates in 2006.
In: MRS Field Conference 2006: building relationships with interviewers, clients and respondents, 10-11 Jul 2006, Birmingham, UK.