Acknowledgements
This course was written by Patricia Duplock and Jonathan Hughes.
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The material acknowledged below is Proprietary and used under licence (not subject to Creative Commons Licence). Grateful acknowledgement is made to the following sources for permission to reproduce material in this unit:
Figures
Figure 2: © D O’Neil. Reproduced under the terms of the GNU Free Documentation Licence
Figure 3: © Thomas Hawk/Foter.com/made available under Creative Commons Attribution NonCommercial licence
Figure 5: © Barron Claiborne/Corbis
Video featuring Karen, Levene and Shehnaz © The Open University (2008)
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