Acknowledgements

This course was written by John Oates.

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Course image: Pablo in Flickr made available under Creative Commons Attribution-ShareAlike 2.0 Licence.

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 course:

Images:

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Figure 5: © iStockphoto

Figure 6: © The Open University

Figure 7: © Alamy

Figure 8: © Richard Bowlby

Figure 9: © iStockphoto

Figure 10: © John Oates

Figure 11: © The Open University

Figure 12: © The Open University.

AV

© The Open University

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