Acknowledgements
The content acknowledged below is Proprietary (see terms and conditions [Tip: hold Ctrl and click a link to open it in a new tab. (Hide tip)] ) and is used under licence.
Grateful acknowledgement is made to the following sources for permission to reproduce material in this course:
Course image: Jimmy MacDonald in Flickr made available under Creative Commons Attribution 2.0 Licence.
The content acknowledged below is Proprietary and is used under licence.
This extract is taken from K202 © 2000 The Open University
Section 2.1 Courtesy of William Moult;
Section 2.1 Courtesy of Karen Bayliss;
Section 2.2 Courtesy of William Moult;
Section 2.2 Courtesy of William Moult.
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