Acknowledgements

This free course was written by Dr John Butcher and Jay Rixon.

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)] ). This content is made available under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 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 free course:

Images

Optional Activity Image: © Anatolii Babii/iStockphoto.com/Getty Images Plus

Keep on Learning Image: © Konstantin Chagin/iStockphoto.com

Every effort has been made to contact copyright owners. If any have been inadvertently overlooked, the publishers will be pleased to make the necessary arrangements at the first opportunity.

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