1. Copyright © 2011, Elsevier Inc. All rights reserved. Chapter 8 Author: Julia Richards and R. Scott Hawley

2. Copyright © 2011, Elsevier Inc. All rights reserved. Figure 8.1

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4. Copyright © 2011, Elsevier Inc. All rights reserved. Figure 8.3

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7. Copyright © 2011, Elsevier Inc. All rights reserved. Figure 8.6

8. Copyright © 2011, Elsevier Inc. All rights reserved. Figure 8.7

9. Copyright © 2011, Elsevier Inc. All rights reserved. Figure 8.8

10. Copyright © 2011, Elsevier Inc. All rights reserved. Figure 8.9

11. Copyright © 2011, Elsevier Inc. All rights reserved. Figure 8.10